20451660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7927}}^1$

素因数の和:7982

約数の個数: 48

約数和(自身を含む): 58603776

約数和(自身を除く): 38152116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7927, 15854, 23781, 31708, 39635, 47562, 79270, 95124, 118905, 158540, 237810, 340861, 475620, 681722, 1022583, 1363444, 1704305, 2045166, 3408610, 4090332, 5112915, 6817220, 10225830, 20451660]

約数ペア:

[(1, 20451660), (2, 10225830), (3, 6817220), (4, 5112915), (5, 4090332), (6, 3408610), (10, 2045166), (12, 1704305), (15, 1363444), (20, 1022583), (30, 681722), (43, 475620), (60, 340861), (86, 237810), (129, 158540), (172, 118905), (215, 95124), (258, 79270), (430, 47562), (516, 39635), (645, 31708), (860, 23781), (1290, 15854), (2580, 7927)]