80858480

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4229}}^1$

素因数の和:4481

約数の個数: 40

約数和(自身を含む): 188827200

約数和(自身を除く): 107968720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4229, 4780, 8458, 9560, 16916, 19120, 21145, 33832, 42290, 67664, 84580, 169160, 338320, 1010731, 2021462, 4042924, 5053655, 8085848, 10107310, 16171696, 20214620, 40429240, 80858480]

約数ペア:

[(1, 80858480), (2, 40429240), (4, 20214620), (5, 16171696), (8, 10107310), (10, 8085848), (16, 5053655), (20, 4042924), (40, 2021462), (80, 1010731), (239, 338320), (478, 169160), (956, 84580), (1195, 67664), (1912, 42290), (2390, 33832), (3824, 21145), (4229, 19120), (4780, 16916), (8458, 9560)]