4455640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{15913}}^1$

素因数の和:15931

約数の個数: 32

約数和(自身を含む): 11458080

約数和(自身を除く): 7002440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 15913, 31826, 63652, 79565, 111391, 127304, 159130, 222782, 318260, 445564, 556955, 636520, 891128, 1113910, 2227820, 4455640]

約数ペア:

[(1, 4455640), (2, 2227820), (4, 1113910), (5, 891128), (7, 636520), (8, 556955), (10, 445564), (14, 318260), (20, 222782), (28, 159130), (35, 127304), (40, 111391), (56, 79565), (70, 63652), (140, 31826), (280, 15913)]