81559310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{40177}}^1$

素因数の和:40220

約数の個数: 32

約数和(自身を含む): 173568960

約数和(自身を除く): 92009650

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 40177, 80354, 200885, 281239, 401770, 562478, 1165133, 1406195, 2330266, 2812390, 5825665, 8155931, 11651330, 16311862, 40779655, 81559310]

約数ペア:

[(1, 81559310), (2, 40779655), (5, 16311862), (7, 11651330), (10, 8155931), (14, 5825665), (29, 2812390), (35, 2330266), (58, 1406195), (70, 1165133), (145, 562478), (203, 401770), (290, 281239), (406, 200885), (1015, 80354), (2030, 40177)]