678889264

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{161333}}^1$

素因数の和:161604

約数の個数: 20

約数和(自身を含む): 1320357456

約数和(自身を除く): 641468192

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 161333, 322666, 645332, 1290664, 2581328, 42430579, 84861158, 169722316, 339444632, 678889264]

約数ペア:

[(1, 678889264), (2, 339444632), (4, 169722316), (8, 84861158), (16, 42430579), (263, 2581328), (526, 1290664), (1052, 645332), (2104, 322666), (4208, 161333)]