1215208020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 288

約数和(自身を含む): 3925393920

約数和(自身を除く): 2710185900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 37, 39, 41, 52, 60, 65, 74, 78, 79, 82, 111, 123, 130, 148, 156, 158, 164, 169, 185, 195, 205, 222, 237, 246, 260, 316, 338, 370, 390, 395, 410, 444, 474, 481, 492, 507, 533, 555, 615, 676, 740, 780, 790, 820, 845, 948, 962, 1014, 1027, 1066, 1110, 1185, 1230, 1443, 1517, 1580, 1599, 1690, 1924, 2028, 2054, 2132, 2220, 2370, 2405, 2460, 2535, 2665, 2886, 2923, 3034, 3081, 3198, 3239, 3380, 4108, 4551, 4740, 4810, 5070, 5135, 5330, 5772, 5846, 6068, 6162, 6253, 6396, 6478, 6929, 7215, 7585, 7995, 8769, 9102, 9620, 9717, 10140, 10270, 10660, 11692, 12324, 12506, 12956, 13351, 13858, 14430, 14615, 15170, 15405, 15990, 16195, 17538, 18204, 18759, 19434, 19721, 20540, 20787, 22755, 25012, 26702, 27716, 28860, 29230, 30340, 30810, 31265, 31980, 32390, 34645, 35076, 37518, 37999, 38868, 39442, 40053, 41574, 42107, 43845, 45510, 48585, 53404, 58460, 59163, 61620, 62530, 64780, 66755, 69290, 75036, 75998, 78884, 80106, 83148, 84214, 87690, 91020, 93795, 97170, 98605, 103935, 113997, 118326, 119843, 125060, 126321, 133510, 138580, 151996, 160212, 168428, 175380, 187590, 189995, 194340, 197210, 200265, 207870, 210535, 227994, 236652, 239686, 252642, 256373, 267020, 295815, 359529, 375180, 379990, 394420, 400530, 415740, 421070, 455988, 479372, 493987, 505284, 512746, 547391, 569985, 591630, 599215, 631605, 719058, 759980, 769119, 801060, 842140, 987974, 1025492, 1094782, 1139970, 1183260, 1198430, 1263210, 1281865, 1438116, 1481961, 1538238, 1557959, 1642173, 1797645, 1975948, 2189564, 2279940, 2396860, 2469935, 2526420, 2563730, 2736955, 2963922, 3076476, 3115918, 3284346, 3595290, 3845595, 4673877, 4939870, 5127460, 5473910, 5927844, 6231836, 6568692, 7190580, 7409805, 7691190, 7789795, 8210865, 9347754, 9879740, 10947820, 14819610, 15382380, 15579590, 16421730, 18695508, 20253467, 23369385, 29639220, 31159180, 32843460, 40506934, 46738770, 60760401, 81013868, 93477540, 101267335, 121520802, 202534670, 243041604, 303802005, 405069340, 607604010, 1215208020]

約数ペア:

[(1, 1215208020), (2, 607604010), (3, 405069340), (4, 303802005), (5, 243041604), (6, 202534670), (10, 121520802), (12, 101267335), (13, 93477540), (15, 81013868), (20, 60760401), (26, 46738770), (30, 40506934), (37, 32843460), (39, 31159180), (41, 29639220), (52, 23369385), (60, 20253467), (65, 18695508), (74, 16421730), (78, 15579590), (79, 15382380), (82, 14819610), (111, 10947820), (123, 9879740), (130, 9347754), (148, 8210865), (156, 7789795), (158, 7691190), (164, 7409805), (169, 7190580), (185, 6568692), (195, 6231836), (205, 5927844), (222, 5473910), (237, 5127460), (246, 4939870), (260, 4673877), (316, 3845595), (338, 3595290), (370, 3284346), (390, 3115918), (395, 3076476), (410, 2963922), (444, 2736955), (474, 2563730), (481, 2526420), (492, 2469935), (507, 2396860), (533, 2279940), (555, 2189564), (615, 1975948), (676, 1797645), (740, 1642173), (780, 1557959), (790, 1538238), (820, 1481961), (845, 1438116), (948, 1281865), (962, 1263210), (1014, 1198430), (1027, 1183260), (1066, 1139970), (1110, 1094782), (1185, 1025492), (1230, 987974), (1443, 842140), (1517, 801060), (1580, 769119), (1599, 759980), (1690, 719058), (1924, 631605), (2028, 599215), (2054, 591630), (2132, 569985), (2220, 547391), (2370, 512746), (2405, 505284), (2460, 493987), (2535, 479372), (2665, 455988), (2886, 421070), (2923, 415740), (3034, 400530), (3081, 394420), (3198, 379990), (3239, 375180), (3380, 359529), (4108, 295815), (4551, 267020), (4740, 256373), (4810, 252642), (5070, 239686), (5135, 236652), (5330, 227994), (5772, 210535), (5846, 207870), (6068, 200265), (6162, 197210), (6253, 194340), (6396, 189995), (6478, 187590), (6929, 175380), (7215, 168428), (7585, 160212), (7995, 151996), (8769, 138580), (9102, 133510), (9620, 126321), (9717, 125060), (10140, 119843), (10270, 118326), (10660, 113997), (11692, 103935), (12324, 98605), (12506, 97170), (12956, 93795), (13351, 91020), (13858, 87690), (14430, 84214), (14615, 83148), (15170, 80106), (15405, 78884), (15990, 75998), (16195, 75036), (17538, 69290), (18204, 66755), (18759, 64780), (19434, 62530), (19721, 61620), (20540, 59163), (20787, 58460), (22755, 53404), (25012, 48585), (26702, 45510), (27716, 43845), (28860, 42107), (29230, 41574), (30340, 40053), (30810, 39442), (31265, 38868), (31980, 37999), (32390, 37518), (34645, 35076)]