30979980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1579}}^1$

素因数の和:1703

約数の個数: 72

約数和(自身を含む): 94894800

約数和(自身を除く): 63914820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1308, 1579, 1635, 1962, 2180, 3158, 3270, 3924, 4737, 4905, 6316, 6540, 7895, 9474, 9810, 14211, 15790, 18948, 19620, 23685, 28422, 31580, 47370, 56844, 71055, 94740, 142110, 172111, 284220, 344222, 516333, 688444, 860555, 1032666, 1548999, 1721110, 2065332, 2581665, 3097998, 3442220, 5163330, 6195996, 7744995, 10326660, 15489990, 30979980]

約数ペア:

[(1, 30979980), (2, 15489990), (3, 10326660), (4, 7744995), (5, 6195996), (6, 5163330), (9, 3442220), (10, 3097998), (12, 2581665), (15, 2065332), (18, 1721110), (20, 1548999), (30, 1032666), (36, 860555), (45, 688444), (60, 516333), (90, 344222), (109, 284220), (180, 172111), (218, 142110), (327, 94740), (436, 71055), (545, 56844), (654, 47370), (981, 31580), (1090, 28422), (1308, 23685), (1579, 19620), (1635, 18948), (1962, 15790), (2180, 14211), (3158, 9810), (3270, 9474), (3924, 7895), (4737, 6540), (4905, 6316)]