31303025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 43568640

約数和(自身を除く): 12265615

約数列:

[1, 5, 13, 25, 31, 65, 155, 169, 239, 325, 403, 775, 845, 1195, 2015, 3107, 4225, 5239, 5975, 7409, 10075, 15535, 26195, 37045, 40391, 77675, 96317, 130975, 185225, 201955, 481585, 1009775, 1252121, 2407925, 6260605, 31303025]

約数ペア:

[(1, 31303025), (5, 6260605), (13, 2407925), (25, 1252121), (31, 1009775), (65, 481585), (155, 201955), (169, 185225), (239, 130975), (325, 96317), (403, 77675), (775, 40391), (845, 37045), (1195, 26195), (2015, 15535), (3107, 10075), (4225, 7409), (5239, 5975)]