20147340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{821}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 56619360

約数和(自身を除く): 36472020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 821, 1227, 1636, 1642, 2045, 2454, 2463, 3284, 4090, 4105, 4908, 4926, 6135, 8180, 8210, 9852, 12270, 12315, 16420, 24540, 24630, 49260, 335789, 671578, 1007367, 1343156, 1678945, 2014734, 3357890, 4029468, 5036835, 6715780, 10073670, 20147340]

約数ペア:

[(1, 20147340), (2, 10073670), (3, 6715780), (4, 5036835), (5, 4029468), (6, 3357890), (10, 2014734), (12, 1678945), (15, 1343156), (20, 1007367), (30, 671578), (60, 335789), (409, 49260), (818, 24630), (821, 24540), (1227, 16420), (1636, 12315), (1642, 12270), (2045, 9852), (2454, 8210), (2463, 8180), (3284, 6135), (4090, 4926), (4105, 4908)]