81254390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{68281}}^1$

素因数の和:68312

約数の個数: 32

約数和(自身を含む): 176986944

約数和(自身を除く): 95732554

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 68281, 136562, 341405, 477967, 682810, 955934, 1160777, 2321554, 2389835, 4779670, 5803885, 8125439, 11607770, 16250878, 40627195, 81254390]

約数ペア:

[(1, 81254390), (2, 40627195), (5, 16250878), (7, 11607770), (10, 8125439), (14, 5803885), (17, 4779670), (34, 2389835), (35, 2321554), (70, 1160777), (85, 955934), (119, 682810), (170, 477967), (238, 341405), (595, 136562), (1190, 68281)]