3855640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2351}}^1$

素因数の和:2403

約数の個数: 32

約数和(自身を含む): 8890560

約数和(自身を除く): 5034920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 2351, 4702, 9404, 11755, 18808, 23510, 47020, 94040, 96391, 192782, 385564, 481955, 771128, 963910, 1927820, 3855640]

約数ペア:

[(1, 3855640), (2, 1927820), (4, 963910), (5, 771128), (8, 481955), (10, 385564), (20, 192782), (40, 96391), (41, 94040), (82, 47020), (164, 23510), (205, 18808), (328, 11755), (410, 9404), (820, 4702), (1640, 2351)]