18748025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 25426944

約数和(自身を除く): 6678919

約数列:

[1, 5, 17, 25, 31, 85, 155, 425, 527, 775, 1423, 2635, 7115, 13175, 24191, 35575, 44113, 120955, 220565, 604775, 749921, 1102825, 3749605, 18748025]

約数ペア:

[(1, 18748025), (5, 3749605), (17, 1102825), (25, 749921), (31, 604775), (85, 220565), (155, 120955), (425, 44113), (527, 35575), (775, 24191), (1423, 13175), (2635, 7115)]