17312725

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 22498560

約数和(自身を除く): 5185835

約数列:

[1, 5, 25, 31, 89, 155, 251, 445, 775, 1255, 2225, 2759, 6275, 7781, 13795, 22339, 38905, 68975, 111695, 194525, 558475, 692509, 3462545, 17312725]

約数ペア:

[(1, 17312725), (5, 3462545), (25, 692509), (31, 558475), (89, 194525), (155, 111695), (251, 68975), (445, 38905), (775, 22339), (1255, 13795), (2225, 7781), (2759, 6275)]