15889850440

素因数分解:

$2^3\times 5^1\times {\mathrm{31081}}^1\times {\mathrm{12781}}^1$

素因数の和:43873

約数の個数: 32

約数和(自身を含む): 35756111160

約数和(自身を除く): 19866260720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12781, 25562, 31081, 51124, 62162, 63905, 102248, 124324, 127810, 155405, 248648, 255620, 310810, 511240, 621620, 1243240, 397246261, 794492522, 1588985044, 1986231305, 3177970088, 3972462610, 7944925220, 15889850440]

約数ペア:

[(1, 15889850440), (2, 7944925220), (4, 3972462610), (5, 3177970088), (8, 1986231305), (10, 1588985044), (20, 794492522), (40, 397246261), (12781, 1243240), (25562, 621620), (31081, 511240), (51124, 310810), (62162, 255620), (63905, 248648), (102248, 155405), (124324, 127810)]