220167580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{355109}}^1$

素因数の和:355149

約数の個数: 24

約数和(自身を含む): 477267840

約数和(自身を除く): 257100260

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 355109, 710218, 1420436, 1775545, 3551090, 7102180, 11008379, 22016758, 44033516, 55041895, 110083790, 220167580]

約数ペア:

[(1, 220167580), (2, 110083790), (4, 55041895), (5, 44033516), (10, 22016758), (20, 11008379), (31, 7102180), (62, 3551090), (124, 1775545), (155, 1420436), (310, 710218), (620, 355109)]