20655870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4621}}^1$

素因数の和:4780

約数の個数: 32

約数和(自身を含む): 49917600

約数和(自身を除く): 29261730

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 149, 298, 447, 745, 894, 1490, 2235, 4470, 4621, 9242, 13863, 23105, 27726, 46210, 69315, 138630, 688529, 1377058, 2065587, 3442645, 4131174, 6885290, 10327935, 20655870]

約数ペア:

[(1, 20655870), (2, 10327935), (3, 6885290), (5, 4131174), (6, 3442645), (10, 2065587), (15, 1377058), (30, 688529), (149, 138630), (298, 69315), (447, 46210), (745, 27726), (894, 23105), (1490, 13863), (2235, 9242), (4470, 4621)]