3878020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2731}}^1$

素因数の和:2811

約数の個数: 24

約数和(自身を含む): 8261568

約数和(自身を除く): 4383548

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 2731, 5462, 10924, 13655, 27310, 54620, 193901, 387802, 775604, 969505, 1939010, 3878020]

約数ペア:

[(1, 3878020), (2, 1939010), (4, 969505), (5, 775604), (10, 387802), (20, 193901), (71, 54620), (142, 27310), (284, 13655), (355, 10924), (710, 5462), (1420, 2731)]