81427025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{4673}}^1$

素因数の和:4741

約数の個数: 24

約数和(自身を含む): 109539864

約数和(自身を除く): 28112839

約数列:

[1, 5, 17, 25, 41, 85, 205, 425, 697, 1025, 3485, 4673, 17425, 23365, 79441, 116825, 191593, 397205, 957965, 1986025, 3257081, 4789825, 16285405, 81427025]

約数ペア:

[(1, 81427025), (5, 16285405), (17, 4789825), (25, 3257081), (41, 1986025), (85, 957965), (205, 397205), (425, 191593), (697, 116825), (1025, 79441), (3485, 23365), (4673, 17425)]