87512915

素因数分解:

$5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1\times {\mathrm{173}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 122774400

約数和(自身を除く): 35261485

約数列:

[1, 5, 7, 35, 97, 149, 173, 485, 679, 745, 865, 1043, 1211, 3395, 5215, 6055, 14453, 16781, 25777, 72265, 83905, 101171, 117467, 128885, 180439, 505855, 587335, 902195, 2500369, 12501845, 17502583, 87512915]

約数ペア:

[(1, 87512915), (5, 17502583), (7, 12501845), (35, 2500369), (97, 902195), (149, 587335), (173, 505855), (485, 180439), (679, 128885), (745, 117467), (865, 101171), (1043, 83905), (1211, 72265), (3395, 25777), (5215, 16781), (6055, 14453)]