51877980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:249

約数の個数: 288

約数和(自身を含む): 207567360

約数和(自身を除く): 155689380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 28, 30, 33, 35, 36, 38, 42, 44, 45, 55, 57, 60, 63, 66, 70, 76, 77, 84, 90, 95, 99, 105, 110, 114, 126, 132, 133, 140, 154, 165, 171, 180, 190, 197, 198, 209, 210, 220, 228, 231, 252, 266, 285, 308, 315, 330, 342, 380, 385, 394, 396, 399, 418, 420, 462, 495, 532, 570, 591, 627, 630, 660, 665, 684, 693, 770, 788, 798, 836, 855, 924, 985, 990, 1045, 1140, 1155, 1182, 1197, 1254, 1260, 1330, 1379, 1386, 1463, 1540, 1596, 1710, 1773, 1881, 1970, 1980, 1995, 2090, 2167, 2310, 2364, 2394, 2508, 2660, 2758, 2772, 2926, 2955, 3135, 3420, 3465, 3546, 3743, 3762, 3940, 3990, 4137, 4180, 4334, 4389, 4620, 4788, 5516, 5852, 5910, 5985, 6270, 6501, 6895, 6930, 7092, 7315, 7486, 7524, 7980, 8274, 8668, 8778, 8865, 9405, 10835, 11229, 11820, 11970, 12411, 12540, 13002, 13167, 13790, 13860, 14630, 14972, 15169, 16548, 17556, 17730, 18715, 18810, 19503, 20685, 21670, 21945, 22458, 23940, 24822, 26004, 26201, 26334, 27580, 29260, 30338, 32505, 33687, 35460, 37430, 37620, 39006, 41173, 41370, 43340, 43890, 44916, 45507, 49644, 52402, 52668, 56145, 60676, 62055, 65010, 65835, 67374, 74860, 75845, 78012, 78603, 82346, 82740, 87780, 91014, 97515, 104804, 112290, 123519, 124110, 130020, 131005, 131670, 134748, 136521, 151690, 157206, 164692, 168435, 182028, 195030, 205865, 224580, 227535, 235809, 247038, 248220, 262010, 263340, 273042, 288211, 303380, 314412, 336870, 370557, 390060, 393015, 411730, 455070, 471618, 494076, 524020, 546084, 576422, 617595, 673740, 682605, 741114, 786030, 823460, 864633, 910140, 943236, 1152844, 1179045, 1235190, 1365210, 1441055, 1482228, 1572060, 1729266, 1852785, 2358090, 2470380, 2593899, 2730420, 2882110, 3458532, 3705570, 4323165, 4716180, 5187798, 5764220, 7411140, 8646330, 10375596, 12969495, 17292660, 25938990, 51877980]

約数ペア:

[(1, 51877980), (2, 25938990), (3, 17292660), (4, 12969495), (5, 10375596), (6, 8646330), (7, 7411140), (9, 5764220), (10, 5187798), (11, 4716180), (12, 4323165), (14, 3705570), (15, 3458532), (18, 2882110), (19, 2730420), (20, 2593899), (21, 2470380), (22, 2358090), (28, 1852785), (30, 1729266), (33, 1572060), (35, 1482228), (36, 1441055), (38, 1365210), (42, 1235190), (44, 1179045), (45, 1152844), (55, 943236), (57, 910140), (60, 864633), (63, 823460), (66, 786030), (70, 741114), (76, 682605), (77, 673740), (84, 617595), (90, 576422), (95, 546084), (99, 524020), (105, 494076), (110, 471618), (114, 455070), (126, 411730), (132, 393015), (133, 390060), (140, 370557), (154, 336870), (165, 314412), (171, 303380), (180, 288211), (190, 273042), (197, 263340), (198, 262010), (209, 248220), (210, 247038), (220, 235809), (228, 227535), (231, 224580), (252, 205865), (266, 195030), (285, 182028), (308, 168435), (315, 164692), (330, 157206), (342, 151690), (380, 136521), (385, 134748), (394, 131670), (396, 131005), (399, 130020), (418, 124110), (420, 123519), (462, 112290), (495, 104804), (532, 97515), (570, 91014), (591, 87780), (627, 82740), (630, 82346), (660, 78603), (665, 78012), (684, 75845), (693, 74860), (770, 67374), (788, 65835), (798, 65010), (836, 62055), (855, 60676), (924, 56145), (985, 52668), (990, 52402), (1045, 49644), (1140, 45507), (1155, 44916), (1182, 43890), (1197, 43340), (1254, 41370), (1260, 41173), (1330, 39006), (1379, 37620), (1386, 37430), (1463, 35460), (1540, 33687), (1596, 32505), (1710, 30338), (1773, 29260), (1881, 27580), (1970, 26334), (1980, 26201), (1995, 26004), (2090, 24822), (2167, 23940), (2310, 22458), (2364, 21945), (2394, 21670), (2508, 20685), (2660, 19503), (2758, 18810), (2772, 18715), (2926, 17730), (2955, 17556), (3135, 16548), (3420, 15169), (3465, 14972), (3546, 14630), (3743, 13860), (3762, 13790), (3940, 13167), (3990, 13002), (4137, 12540), (4180, 12411), (4334, 11970), (4389, 11820), (4620, 11229), (4788, 10835), (5516, 9405), (5852, 8865), (5910, 8778), (5985, 8668), (6270, 8274), (6501, 7980), (6895, 7524), (6930, 7486), (7092, 7315)]