72129605

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 92583000

約数和(自身を除く): 20453395

約数列:

[1, 5, 19, 89, 95, 361, 445, 449, 1691, 1805, 2245, 8455, 8531, 32129, 39961, 42655, 160645, 162089, 199805, 759259, 810445, 3796295, 14425921, 72129605]

約数ペア:

[(1, 72129605), (5, 14425921), (19, 3796295), (89, 810445), (95, 759259), (361, 199805), (445, 162089), (449, 160645), (1691, 42655), (1805, 39961), (2245, 32129), (8455, 8531)]