72642490

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{17761}}^1$

素因数の和:18177

約数の個数: 16

約数和(自身を含む): 131083560

約数和(自身を除く): 58441070

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 17761, 35522, 88805, 177610, 7264249, 14528498, 36321245, 72642490]

約数ペア:

[(1, 72642490), (2, 36321245), (5, 14528498), (10, 7264249), (409, 177610), (818, 88805), (2045, 35522), (4090, 17761)]