1277156680

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{2137}}^1$

素因数の和:2438

約数の個数: 64

約数和(自身を含む): 2930941440

約数和(自身を除く): 1653784760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 223, 268, 335, 446, 536, 670, 892, 1115, 1340, 1784, 2137, 2230, 2680, 4274, 4460, 8548, 8920, 10685, 14941, 17096, 21370, 29882, 42740, 59764, 74705, 85480, 119528, 143179, 149410, 286358, 298820, 476551, 572716, 597640, 715895, 953102, 1145432, 1431790, 1906204, 2382755, 2863580, 3812408, 4765510, 5727160, 9531020, 19062040, 31928917, 63857834, 127715668, 159644585, 255431336, 319289170, 638578340, 1277156680]

約数ペア:

[(1, 1277156680), (2, 638578340), (4, 319289170), (5, 255431336), (8, 159644585), (10, 127715668), (20, 63857834), (40, 31928917), (67, 19062040), (134, 9531020), (223, 5727160), (268, 4765510), (335, 3812408), (446, 2863580), (536, 2382755), (670, 1906204), (892, 1431790), (1115, 1145432), (1340, 953102), (1784, 715895), (2137, 597640), (2230, 572716), (2680, 476551), (4274, 298820), (4460, 286358), (8548, 149410), (8920, 143179), (10685, 119528), (14941, 85480), (17096, 74705), (21370, 59764), (29882, 42740)]