21530100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1669}}^1$

素因数の和:1729

約数の個数: 72

約数和(自身を含む): 63780640

約数和(自身を除く): 42250540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 1669, 2150, 2580, 3225, 3338, 4300, 5007, 6450, 6676, 8345, 10014, 12900, 16690, 20028, 25035, 33380, 41725, 50070, 71767, 83450, 100140, 125175, 143534, 166900, 215301, 250350, 287068, 358835, 430602, 500700, 717670, 861204, 1076505, 1435340, 1794175, 2153010, 3588350, 4306020, 5382525, 7176700, 10765050, 21530100]

約数ペア:

[(1, 21530100), (2, 10765050), (3, 7176700), (4, 5382525), (5, 4306020), (6, 3588350), (10, 2153010), (12, 1794175), (15, 1435340), (20, 1076505), (25, 861204), (30, 717670), (43, 500700), (50, 430602), (60, 358835), (75, 287068), (86, 250350), (100, 215301), (129, 166900), (150, 143534), (172, 125175), (215, 100140), (258, 83450), (300, 71767), (430, 50070), (516, 41725), (645, 33380), (860, 25035), (1075, 20028), (1290, 16690), (1669, 12900), (2150, 10014), (2580, 8345), (3225, 6676), (3338, 6450), (4300, 5007)]