493679990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1\times {\mathrm{2557}}^1$

素因数の和:3056

約数の個数: 32

約数和(自身を含む): 911671200

約数和(自身を除く): 417991210

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 449, 898, 2245, 2557, 4490, 5114, 12785, 19307, 25570, 38614, 96535, 109951, 193070, 219902, 549755, 1099510, 1148093, 2296186, 5740465, 11480930, 49367999, 98735998, 246839995, 493679990]

約数ペア:

[(1, 493679990), (2, 246839995), (5, 98735998), (10, 49367999), (43, 11480930), (86, 5740465), (215, 2296186), (430, 1148093), (449, 1099510), (898, 549755), (2245, 219902), (2557, 193070), (4490, 109951), (5114, 96535), (12785, 38614), (19307, 25570)]