99710720

素因数分解:

$2^8\times 5^1\times {\mathrm{77899}}^1$

素因数の和:77920

約数の個数: 36

約数和(自身を含む): 238841400

約数和(自身を除く): 139130680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 77899, 155798, 311596, 389495, 623192, 778990, 1246384, 1557980, 2492768, 3115960, 4985536, 6231920, 9971072, 12463840, 19942144, 24927680, 49855360, 99710720]

約数ペア:

[(1, 99710720), (2, 49855360), (4, 24927680), (5, 19942144), (8, 12463840), (10, 9971072), (16, 6231920), (20, 4985536), (32, 3115960), (40, 2492768), (64, 1557980), (80, 1246384), (128, 778990), (160, 623192), (256, 389495), (320, 311596), (640, 155798), (1280, 77899)]