28789780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9661}}^1$

素因数の和:9819

約数の個数: 24

約数和(自身を含む): 60870600

約数和(自身を除く): 32080820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 9661, 19322, 38644, 48305, 96610, 193220, 1439489, 2878978, 5757956, 7197445, 14394890, 28789780]

約数ペア:

[(1, 28789780), (2, 14394890), (4, 7197445), (5, 5757956), (10, 2878978), (20, 1439489), (149, 193220), (298, 96610), (596, 48305), (745, 38644), (1490, 19322), (2980, 9661)]