20538660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{733}}^1$

素因数の和:1212

約数の個数: 48

約数和(自身を含む): 57710016

約数和(自身を除く): 37171356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 467, 733, 934, 1401, 1466, 1868, 2199, 2335, 2802, 2932, 3665, 4398, 4670, 5604, 7005, 7330, 8796, 9340, 10995, 14010, 14660, 21990, 28020, 43980, 342311, 684622, 1026933, 1369244, 1711555, 2053866, 3423110, 4107732, 5134665, 6846220, 10269330, 20538660]

約数ペア:

[(1, 20538660), (2, 10269330), (3, 6846220), (4, 5134665), (5, 4107732), (6, 3423110), (10, 2053866), (12, 1711555), (15, 1369244), (20, 1026933), (30, 684622), (60, 342311), (467, 43980), (733, 28020), (934, 21990), (1401, 14660), (1466, 14010), (1868, 10995), (2199, 9340), (2335, 8796), (2802, 7330), (2932, 7005), (3665, 5604), (4398, 4670)]