31625425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 45219328

約数和(自身を除く): 13593903

約数列:

[1, 5, 13, 25, 31, 43, 65, 73, 155, 215, 325, 365, 403, 559, 775, 949, 1075, 1333, 1825, 2015, 2263, 2795, 3139, 4745, 6665, 10075, 11315, 13975, 15695, 17329, 23725, 29419, 33325, 40807, 56575, 78475, 86645, 97309, 147095, 204035, 433225, 486545, 735475, 1020175, 1265017, 2432725, 6325085, 31625425]

約数ペア:

[(1, 31625425), (5, 6325085), (13, 2432725), (25, 1265017), (31, 1020175), (43, 735475), (65, 486545), (73, 433225), (155, 204035), (215, 147095), (325, 97309), (365, 86645), (403, 78475), (559, 56575), (775, 40807), (949, 33325), (1075, 29419), (1333, 23725), (1825, 17329), (2015, 15695), (2263, 13975), (2795, 11315), (3139, 10075), (4745, 6665)]