205151490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:229

約数の個数: 144

約数和(自身を含む): 579720960

約数和(自身を除く): 374569470

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 31, 45, 46, 62, 69, 90, 93, 115, 138, 139, 155, 186, 207, 230, 278, 279, 310, 345, 414, 417, 465, 529, 558, 690, 695, 713, 834, 930, 1035, 1058, 1251, 1390, 1395, 1426, 1587, 2070, 2085, 2139, 2502, 2645, 2790, 3174, 3197, 3565, 4170, 4278, 4309, 4761, 5290, 6255, 6394, 6417, 7130, 7935, 8618, 9522, 9591, 10695, 12510, 12834, 12927, 15870, 15985, 16399, 19182, 21390, 21545, 23805, 25854, 28773, 31970, 32085, 32798, 38781, 43090, 47610, 47955, 49197, 57546, 64170, 64635, 73531, 77562, 81995, 95910, 98394, 99107, 129270, 143865, 147062, 147591, 163990, 193905, 198214, 220593, 245985, 287730, 295182, 297321, 367655, 387810, 441186, 491970, 495535, 594642, 661779, 735310, 737955, 891963, 991070, 1102965, 1323558, 1475910, 1486605, 1783926, 2205930, 2279461, 2973210, 3308895, 4459815, 4558922, 6617790, 6838383, 8919630, 11397305, 13676766, 20515149, 22794610, 34191915, 41030298, 68383830, 102575745, 205151490]

約数ペア:

[(1, 205151490), (2, 102575745), (3, 68383830), (5, 41030298), (6, 34191915), (9, 22794610), (10, 20515149), (15, 13676766), (18, 11397305), (23, 8919630), (30, 6838383), (31, 6617790), (45, 4558922), (46, 4459815), (62, 3308895), (69, 2973210), (90, 2279461), (93, 2205930), (115, 1783926), (138, 1486605), (139, 1475910), (155, 1323558), (186, 1102965), (207, 991070), (230, 891963), (278, 737955), (279, 735310), (310, 661779), (345, 594642), (414, 495535), (417, 491970), (465, 441186), (529, 387810), (558, 367655), (690, 297321), (695, 295182), (713, 287730), (834, 245985), (930, 220593), (1035, 198214), (1058, 193905), (1251, 163990), (1390, 147591), (1395, 147062), (1426, 143865), (1587, 129270), (2070, 99107), (2085, 98394), (2139, 95910), (2502, 81995), (2645, 77562), (2790, 73531), (3174, 64635), (3197, 64170), (3565, 57546), (4170, 49197), (4278, 47955), (4309, 47610), (4761, 43090), (5290, 38781), (6255, 32798), (6394, 32085), (6417, 31970), (7130, 28773), (7935, 25854), (8618, 23805), (9522, 21545), (9591, 21390), (10695, 19182), (12510, 16399), (12834, 15985), (12927, 15870)]