81261770

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{3547}}^1$

素因数の和:3662

約数の個数: 32

約数和(自身を含む): 153273600

約数和(自身を除く): 72011830

約数列:

[1, 2, 5, 10, 29, 58, 79, 145, 158, 290, 395, 790, 2291, 3547, 4582, 7094, 11455, 17735, 22910, 35470, 102863, 205726, 280213, 514315, 560426, 1028630, 1401065, 2802130, 8126177, 16252354, 40630885, 81261770]

約数ペア:

[(1, 81261770), (2, 40630885), (5, 16252354), (10, 8126177), (29, 2802130), (58, 1401065), (79, 1028630), (145, 560426), (158, 514315), (290, 280213), (395, 205726), (790, 102863), (2291, 35470), (3547, 22910), (4582, 17735), (7094, 11455)]