71784580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{512747}}^1$

素因数の和:512763

約数の個数: 24

約数和(自身を含む): 172283328

約数和(自身を除く): 100498748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 512747, 1025494, 2050988, 2563735, 3589229, 5127470, 7178458, 10254940, 14356916, 17946145, 35892290, 71784580]

約数ペア:

[(1, 71784580), (2, 35892290), (4, 17946145), (5, 14356916), (7, 10254940), (10, 7178458), (14, 5127470), (20, 3589229), (28, 2563735), (35, 2050988), (70, 1025494), (140, 512747)]