420537640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4357}}^1$

素因数の和:4514

約数の個数: 64

約数和(自身を含む): 1004083200

約数和(自身を除く): 583545560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 127, 152, 190, 254, 380, 508, 635, 760, 1016, 1270, 2413, 2540, 4357, 4826, 5080, 8714, 9652, 12065, 17428, 19304, 21785, 24130, 34856, 43570, 48260, 82783, 87140, 96520, 165566, 174280, 331132, 413915, 553339, 662264, 827830, 1106678, 1655660, 2213356, 2766695, 3311320, 4426712, 5533390, 10513441, 11066780, 21026882, 22133560, 42053764, 52567205, 84107528, 105134410, 210268820, 420537640]

約数ペア:

[(1, 420537640), (2, 210268820), (4, 105134410), (5, 84107528), (8, 52567205), (10, 42053764), (19, 22133560), (20, 21026882), (38, 11066780), (40, 10513441), (76, 5533390), (95, 4426712), (127, 3311320), (152, 2766695), (190, 2213356), (254, 1655660), (380, 1106678), (508, 827830), (635, 662264), (760, 553339), (1016, 413915), (1270, 331132), (2413, 174280), (2540, 165566), (4357, 96520), (4826, 87140), (5080, 82783), (8714, 48260), (9652, 43570), (12065, 34856), (17428, 24130), (19304, 21785)]