644857336318

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{125899519}}^1$

素因数の和:125899731

約数の個数: 16

約数和(自身を含む): 1046980408320

約数和(自身を除く): 402123072002

約数列:

[1, 2, 13, 26, 197, 394, 2561, 5122, 125899519, 251799038, 1636693747, 3273387494, 24802205243, 49604410486, 322428668159, 644857336318]

約数ペア:

[(1, 644857336318), (2, 322428668159), (13, 49604410486), (26, 24802205243), (197, 3273387494), (394, 1636693747), (2561, 251799038), (5122, 125899519)]