65431390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2543}}^1$

素因数の和:2664

約数の個数: 32

約数和(自身を含む): 123088896

約数和(自身を除く): 57657506

約数列:

[1, 2, 5, 10, 31, 62, 83, 155, 166, 310, 415, 830, 2543, 2573, 5086, 5146, 12715, 12865, 25430, 25730, 78833, 157666, 211069, 394165, 422138, 788330, 1055345, 2110690, 6543139, 13086278, 32715695, 65431390]

約数ペア:

[(1, 65431390), (2, 32715695), (5, 13086278), (10, 6543139), (31, 2110690), (62, 1055345), (83, 788330), (155, 422138), (166, 394165), (310, 211069), (415, 157666), (830, 78833), (2543, 25730), (2573, 25430), (5086, 12865), (5146, 12715)]