78420965

素因数分解:

$5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{12379}}^1$

素因数の和:12572

約数の個数: 16

約数和(自身を含む): 108151680

約数和(自身を除く): 29730715

約数列:

[1, 5, 7, 35, 181, 905, 1267, 6335, 12379, 61895, 86653, 433265, 2240599, 11202995, 15684193, 78420965]

約数ペア:

[(1, 78420965), (5, 15684193), (7, 11202995), (35, 2240599), (181, 433265), (905, 86653), (1267, 61895), (6335, 12379)]