866980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 1850688

約数和(自身を除く): 983708

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 647, 670, 1294, 1340, 2588, 3235, 6470, 12940, 43349, 86698, 173396, 216745, 433490, 866980]

約数ペア:

[(1, 866980), (2, 433490), (4, 216745), (5, 173396), (10, 86698), (20, 43349), (67, 12940), (134, 6470), (268, 3235), (335, 2588), (647, 1340), (670, 1294)]