71343985

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 92063160

約数和(自身を除く): 20719175

約数列:

[1, 5, 17, 85, 97, 289, 485, 509, 1445, 1649, 2545, 8245, 8653, 28033, 43265, 49373, 140165, 147101, 246865, 735505, 839341, 4196705, 14268797, 71343985]

約数ペア:

[(1, 71343985), (5, 14268797), (17, 4196705), (85, 839341), (97, 735505), (289, 246865), (485, 147101), (509, 140165), (1445, 49373), (1649, 43265), (2545, 28033), (8245, 8653)]