839778320

素因数分解:

$2^4\times 5^1\times {\mathrm{10497229}}^1$

素因数の和:10497242

約数の個数: 20

約数和(自身を含む): 1952484780

約数和(自身を除く): 1112706460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10497229, 20994458, 41988916, 52486145, 83977832, 104972290, 167955664, 209944580, 419889160, 839778320]

約数ペア:

[(1, 839778320), (2, 419889160), (4, 209944580), (5, 167955664), (8, 104972290), (10, 83977832), (16, 52486145), (20, 41988916), (40, 20994458), (80, 10497229)]