31090825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 40622400

約数和(自身を除く): 9531575

約数列:

[1, 5, 23, 25, 115, 139, 389, 575, 695, 1945, 3197, 3475, 8947, 9725, 15985, 44735, 54071, 79925, 223675, 270355, 1243633, 1351775, 6218165, 31090825]

約数ペア:

[(1, 31090825), (5, 6218165), (23, 1351775), (25, 1243633), (115, 270355), (139, 223675), (389, 79925), (575, 54071), (695, 44735), (1945, 15985), (3197, 9725), (3475, 8947)]