78680815

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 99858528

約数和(自身を除く): 21177713

約数列:

[1, 5, 23, 115, 151, 197, 529, 755, 985, 2645, 3473, 4531, 17365, 22655, 29747, 79879, 104213, 148735, 399395, 521065, 684181, 3420905, 15736163, 78680815]

約数ペア:

[(1, 78680815), (5, 15736163), (23, 3420905), (115, 684181), (151, 521065), (197, 399395), (529, 148735), (755, 104213), (985, 79879), (2645, 29747), (3473, 22655), (4531, 17365)]