20519460

素因数分解:

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

素因数の和:147

約数の個数: 192

約数和(自身を含む): 71500800

約数和(自身を除く): 50981340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 37, 39, 45, 52, 54, 60, 65, 74, 78, 79, 90, 108, 111, 117, 130, 135, 148, 156, 158, 180, 185, 195, 222, 234, 237, 260, 270, 316, 333, 351, 370, 390, 395, 444, 468, 474, 481, 540, 555, 585, 666, 702, 711, 740, 780, 790, 948, 962, 999, 1027, 1110, 1170, 1185, 1332, 1404, 1422, 1443, 1580, 1665, 1755, 1924, 1998, 2054, 2133, 2220, 2340, 2370, 2405, 2844, 2886, 2923, 3081, 3330, 3510, 3555, 3996, 4108, 4266, 4329, 4740, 4810, 4995, 5135, 5772, 5846, 6162, 6660, 7020, 7110, 7215, 8532, 8658, 8769, 9243, 9620, 9990, 10270, 10665, 11692, 12324, 12987, 14220, 14430, 14615, 15405, 17316, 17538, 18486, 19980, 20540, 21330, 21645, 25974, 26307, 27729, 28860, 29230, 30810, 35076, 36972, 37999, 42660, 43290, 43845, 46215, 51948, 52614, 55458, 58460, 61620, 64935, 75998, 78921, 86580, 87690, 92430, 105228, 110916, 113997, 129870, 131535, 138645, 151996, 157842, 175380, 184860, 189995, 227994, 259740, 263070, 277290, 315684, 341991, 379990, 394605, 455988, 526140, 554580, 569985, 683982, 759980, 789210, 1025973, 1139970, 1367964, 1578420, 1709955, 2051946, 2279940, 3419910, 4103892, 5129865, 6839820, 10259730, 20519460]

約数ペア:

[(1, 20519460), (2, 10259730), (3, 6839820), (4, 5129865), (5, 4103892), (6, 3419910), (9, 2279940), (10, 2051946), (12, 1709955), (13, 1578420), (15, 1367964), (18, 1139970), (20, 1025973), (26, 789210), (27, 759980), (30, 683982), (36, 569985), (37, 554580), (39, 526140), (45, 455988), (52, 394605), (54, 379990), (60, 341991), (65, 315684), (74, 277290), (78, 263070), (79, 259740), (90, 227994), (108, 189995), (111, 184860), (117, 175380), (130, 157842), (135, 151996), (148, 138645), (156, 131535), (158, 129870), (180, 113997), (185, 110916), (195, 105228), (222, 92430), (234, 87690), (237, 86580), (260, 78921), (270, 75998), (316, 64935), (333, 61620), (351, 58460), (370, 55458), (390, 52614), (395, 51948), (444, 46215), (468, 43845), (474, 43290), (481, 42660), (540, 37999), (555, 36972), (585, 35076), (666, 30810), (702, 29230), (711, 28860), (740, 27729), (780, 26307), (790, 25974), (948, 21645), (962, 21330), (999, 20540), (1027, 19980), (1110, 18486), (1170, 17538), (1185, 17316), (1332, 15405), (1404, 14615), (1422, 14430), (1443, 14220), (1580, 12987), (1665, 12324), (1755, 11692), (1924, 10665), (1998, 10270), (2054, 9990), (2133, 9620), (2220, 9243), (2340, 8769), (2370, 8658), (2405, 8532), (2844, 7215), (2886, 7110), (2923, 7020), (3081, 6660), (3330, 6162), (3510, 5846), (3555, 5772), (3996, 5135), (4108, 4995), (4266, 4810), (4329, 4740)]