55648640

素因数分解:

$2^7\times 5^1\times {\mathrm{86951}}^1$

素因数の和:86970

約数の個数: 32

約数和(自身を含む): 133036560

約数和(自身を除く): 77387920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 86951, 173902, 347804, 434755, 695608, 869510, 1391216, 1739020, 2782432, 3478040, 5564864, 6956080, 11129728, 13912160, 27824320, 55648640]

約数ペア:

[(1, 55648640), (2, 27824320), (4, 13912160), (5, 11129728), (8, 6956080), (10, 5564864), (16, 3478040), (20, 2782432), (32, 1739020), (40, 1391216), (64, 869510), (80, 695608), (128, 434755), (160, 347804), (320, 173902), (640, 86951)]