80376980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{138581}}^1$

素因数の和:138619

約数の個数: 24

約数和(自身を含む): 174613320

約数和(自身を除く): 94236340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 138581, 277162, 554324, 692905, 1385810, 2771620, 4018849, 8037698, 16075396, 20094245, 40188490, 80376980]

約数ペア:

[(1, 80376980), (2, 40188490), (4, 20094245), (5, 16075396), (10, 8037698), (20, 4018849), (29, 2771620), (58, 1385810), (116, 692905), (145, 554324), (290, 277162), (580, 138581)]