83328640

素因数分解:

$2^7\times 5^1\times {\mathrm{130201}}^1$

素因数の和:130220

約数の個数: 32

約数和(自身を含む): 199209060

約数和(自身を除く): 115880420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 130201, 260402, 520804, 651005, 1041608, 1302010, 2083216, 2604020, 4166432, 5208040, 8332864, 10416080, 16665728, 20832160, 41664320, 83328640]

約数ペア:

[(1, 83328640), (2, 41664320), (4, 20832160), (5, 16665728), (8, 10416080), (10, 8332864), (16, 5208040), (20, 4166432), (32, 2604020), (40, 2083216), (64, 1302010), (80, 1041608), (128, 651005), (160, 520804), (320, 260402), (640, 130201)]