401264

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:848

約数の個数: 20

約数和(自身を含む): 803520

約数和(自身を除く): 402256

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 809, 1618, 3236, 6472, 12944, 25079, 50158, 100316, 200632, 401264]

約数ペア:

[(1, 401264), (2, 200632), (4, 100316), (8, 50158), (16, 25079), (31, 12944), (62, 6472), (124, 3236), (248, 1618), (496, 809)]