644972014

素因数分解:

$2^1\times {\mathrm{157}}^1\times {\mathrm{809}}^1\times {\mathrm{2539}}^1$

素因数の和:3507

約数の個数: 16

約数和(自身を含む): 975207600

約数和(自身を除く): 330235586

約数列:

[1, 2, 157, 314, 809, 1618, 2539, 5078, 127013, 254026, 398623, 797246, 2054051, 4108102, 322486007, 644972014]

約数ペア:

[(1, 644972014), (2, 322486007), (157, 4108102), (314, 2054051), (809, 797246), (1618, 398623), (2539, 254026), (5078, 127013)]