1231640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{751}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 2842560

約数和(自身を除く): 1610920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 751, 820, 1502, 1640, 3004, 3755, 6008, 7510, 15020, 30040, 30791, 61582, 123164, 153955, 246328, 307910, 615820, 1231640]

約数ペア:

[(1, 1231640), (2, 615820), (4, 307910), (5, 246328), (8, 153955), (10, 123164), (20, 61582), (40, 30791), (41, 30040), (82, 15020), (164, 7510), (205, 6008), (328, 3755), (410, 3004), (751, 1640), (820, 1502)]