7201240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4443

約数の個数: 32

約数和(自身を含む): 16601760

約数和(自身を除く): 9400520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4391, 8782, 17564, 21955, 35128, 43910, 87820, 175640, 180031, 360062, 720124, 900155, 1440248, 1800310, 3600620, 7201240]

約数ペア:

[(1, 7201240), (2, 3600620), (4, 1800310), (5, 1440248), (8, 900155), (10, 720124), (20, 360062), (40, 180031), (41, 175640), (82, 87820), (164, 43910), (205, 35128), (328, 21955), (410, 17564), (820, 8782), (1640, 4391)]