2918680

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 6629040

約数和(自身を除く): 3710360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 557, 655, 1048, 1114, 1310, 2228, 2620, 2785, 4456, 5240, 5570, 11140, 22280, 72967, 145934, 291868, 364835, 583736, 729670, 1459340, 2918680]

約数ペア:

[(1, 2918680), (2, 1459340), (4, 729670), (5, 583736), (8, 364835), (10, 291868), (20, 145934), (40, 72967), (131, 22280), (262, 11140), (524, 5570), (557, 5240), (655, 4456), (1048, 2785), (1114, 2620), (1310, 2228)]