71856980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{276373}}^1$

素因数の和:276395

約数の個数: 24

約数和(自身を含む): 162507912

約数和(自身を除く): 90650932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 276373, 552746, 1105492, 1381865, 2763730, 3592849, 5527460, 7185698, 14371396, 17964245, 35928490, 71856980]

約数ペア:

[(1, 71856980), (2, 35928490), (4, 17964245), (5, 14371396), (10, 7185698), (13, 5527460), (20, 3592849), (26, 2763730), (52, 1381865), (65, 1105492), (130, 552746), (260, 276373)]