20325720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1583}}^1$

素因数の和:1704

約数の個数: 64

約数和(自身を含む): 61585920

約数和(自身を除く): 41260200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1583, 1605, 2140, 2568, 3166, 3210, 4280, 4749, 6332, 6420, 7915, 9498, 12664, 12840, 15830, 18996, 23745, 31660, 37992, 47490, 63320, 94980, 169381, 189960, 338762, 508143, 677524, 846905, 1016286, 1355048, 1693810, 2032572, 2540715, 3387620, 4065144, 5081430, 6775240, 10162860, 20325720]

約数ペア:

[(1, 20325720), (2, 10162860), (3, 6775240), (4, 5081430), (5, 4065144), (6, 3387620), (8, 2540715), (10, 2032572), (12, 1693810), (15, 1355048), (20, 1016286), (24, 846905), (30, 677524), (40, 508143), (60, 338762), (107, 189960), (120, 169381), (214, 94980), (321, 63320), (428, 47490), (535, 37992), (642, 31660), (856, 23745), (1070, 18996), (1284, 15830), (1583, 12840), (1605, 12664), (2140, 9498), (2568, 7915), (3166, 6420), (3210, 6332), (4280, 4749)]