18201475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{379}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 24172560

約数和(自身を除く): 5971085

約数列:

[1, 5, 17, 25, 85, 113, 379, 425, 565, 1895, 1921, 2825, 6443, 9475, 9605, 32215, 42827, 48025, 161075, 214135, 728059, 1070675, 3640295, 18201475]

約数ペア:

[(1, 18201475), (5, 3640295), (17, 1070675), (25, 728059), (85, 214135), (113, 161075), (379, 48025), (425, 42827), (565, 32215), (1895, 9605), (1921, 9475), (2825, 6443)]