31904275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1103}}^1$

素因数の和:1215

約数の個数: 24

約数和(自身を含む): 43122240

約数和(自身を除く): 11217965

約数列:

[1, 5, 13, 25, 65, 89, 325, 445, 1103, 1157, 2225, 5515, 5785, 14339, 27575, 28925, 71695, 98167, 358475, 490835, 1276171, 2454175, 6380855, 31904275]

約数ペア:

[(1, 31904275), (5, 6380855), (13, 2454175), (25, 1276171), (65, 490835), (89, 358475), (325, 98167), (445, 71695), (1103, 28925), (1157, 27575), (2225, 14339), (5515, 5785)]