645502754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1229}}^1\times {\mathrm{20201}}^1$

素因数の和:21445

約数の個数: 16

約数和(自身を含む): 1043635320

約数和(自身を除く): 398132566

約数列:

[1, 2, 13, 26, 1229, 2458, 15977, 20201, 31954, 40402, 262613, 525226, 24827029, 49654058, 322751377, 645502754]

約数ペア:

[(1, 645502754), (2, 322751377), (13, 49654058), (26, 24827029), (1229, 525226), (2458, 262613), (15977, 40402), (20201, 31954)]