2528825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 3499776

約数和(自身を除く): 970951

約数列:

[1, 5, 13, 25, 31, 65, 155, 251, 325, 403, 775, 1255, 2015, 3263, 6275, 7781, 10075, 16315, 38905, 81575, 101153, 194525, 505765, 2528825]

約数ペア:

[(1, 2528825), (5, 505765), (13, 194525), (25, 101153), (31, 81575), (65, 38905), (155, 16315), (251, 10075), (325, 7781), (403, 6275), (775, 3263), (1255, 2015)]