815820850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1255109}}^1$

素因数の和:1255134

約数の個数: 24

約数和(自身を含む): 1634153220

約数和(自身を除く): 818332370

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 1255109, 2510218, 6275545, 12551090, 16316417, 31377725, 32632834, 62755450, 81582085, 163164170, 407910425, 815820850]

約数ペア:

[(1, 815820850), (2, 407910425), (5, 163164170), (10, 81582085), (13, 62755450), (25, 32632834), (26, 31377725), (50, 16316417), (65, 12551090), (130, 6275545), (325, 2510218), (650, 1255109)]