1386775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 1968624

約数和(自身を除く): 581849

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 251, 325, 425, 1105, 1255, 3263, 4267, 5525, 6275, 16315, 21335, 55471, 81575, 106675, 277355, 1386775]

約数ペア:

[(1, 1386775), (5, 277355), (13, 106675), (17, 81575), (25, 55471), (65, 21335), (85, 16315), (221, 6275), (251, 5525), (325, 4267), (425, 3263), (1105, 1255)]