642764

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 1193808

約数和(自身を除く): 551044

約数列:

[1, 2, 4, 37, 43, 74, 86, 101, 148, 172, 202, 404, 1591, 3182, 3737, 4343, 6364, 7474, 8686, 14948, 17372, 160691, 321382, 642764]

約数ペア:

[(1, 642764), (2, 321382), (4, 160691), (37, 17372), (43, 14948), (74, 8686), (86, 7474), (101, 6364), (148, 4343), (172, 3737), (202, 3182), (404, 1591)]