81413996

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{3221}}^1$

素因数の和:3385

約数の個数: 24

約数和(自身を含む): 146149920

約数和(自身を除く): 64735924

約数列:

[1, 2, 4, 71, 89, 142, 178, 284, 356, 3221, 6319, 6442, 12638, 12884, 25276, 228691, 286669, 457382, 573338, 914764, 1146676, 20353499, 40706998, 81413996]

約数ペア:

[(1, 81413996), (2, 40706998), (4, 20353499), (71, 1146676), (89, 914764), (142, 573338), (178, 457382), (284, 286669), (356, 228691), (3221, 25276), (6319, 12884), (6442, 12638)]