420123288

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:713

約数の個数: 128

約数和(自身を含む): 1201939200

約数和(自身を除く): 781815912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 131, 152, 156, 228, 247, 262, 312, 393, 456, 494, 524, 541, 741, 786, 988, 1048, 1082, 1482, 1572, 1623, 1703, 1976, 2164, 2489, 2964, 3144, 3246, 3406, 4328, 4978, 5109, 5928, 6492, 6812, 7033, 7467, 9956, 10218, 10279, 12984, 13624, 14066, 14934, 19912, 20436, 20558, 21099, 28132, 29868, 30837, 32357, 40872, 41116, 42198, 56264, 59736, 61674, 64714, 70871, 82232, 84396, 97071, 123348, 129428, 133627, 141742, 168792, 194142, 212613, 246696, 258856, 267254, 283484, 388284, 400881, 425226, 534508, 566968, 776568, 801762, 850452, 921323, 1069016, 1346549, 1603524, 1700904, 1842646, 2693098, 2763969, 3207048, 3685292, 4039647, 5386196, 5527938, 7370584, 8079294, 10772392, 11055876, 16158588, 17505137, 22111752, 32317176, 35010274, 52515411, 70020548, 105030822, 140041096, 210061644, 420123288]

約数ペア:

[(1, 420123288), (2, 210061644), (3, 140041096), (4, 105030822), (6, 70020548), (8, 52515411), (12, 35010274), (13, 32317176), (19, 22111752), (24, 17505137), (26, 16158588), (38, 11055876), (39, 10772392), (52, 8079294), (57, 7370584), (76, 5527938), (78, 5386196), (104, 4039647), (114, 3685292), (131, 3207048), (152, 2763969), (156, 2693098), (228, 1842646), (247, 1700904), (262, 1603524), (312, 1346549), (393, 1069016), (456, 921323), (494, 850452), (524, 801762), (541, 776568), (741, 566968), (786, 534508), (988, 425226), (1048, 400881), (1082, 388284), (1482, 283484), (1572, 267254), (1623, 258856), (1703, 246696), (1976, 212613), (2164, 194142), (2489, 168792), (2964, 141742), (3144, 133627), (3246, 129428), (3406, 123348), (4328, 97071), (4978, 84396), (5109, 82232), (5928, 70871), (6492, 64714), (6812, 61674), (7033, 59736), (7467, 56264), (9956, 42198), (10218, 41116), (10279, 40872), (12984, 32357), (13624, 30837), (14066, 29868), (14934, 28132), (19912, 21099), (20436, 20558)]