20532890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^2$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 43690752

約数和(自身を除く): 23157862

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 79, 94, 158, 235, 329, 395, 470, 553, 658, 790, 1106, 1645, 2765, 3290, 3713, 5530, 6241, 7426, 12482, 18565, 25991, 31205, 37130, 43687, 51982, 62410, 87374, 129955, 218435, 259910, 293327, 436870, 586654, 1466635, 2053289, 2933270, 4106578, 10266445, 20532890]

約数ペア:

[(1, 20532890), (2, 10266445), (5, 4106578), (7, 2933270), (10, 2053289), (14, 1466635), (35, 586654), (47, 436870), (70, 293327), (79, 259910), (94, 218435), (158, 129955), (235, 87374), (329, 62410), (395, 51982), (470, 43687), (553, 37130), (658, 31205), (790, 25991), (1106, 18565), (1645, 12482), (2765, 7426), (3290, 6241), (3713, 5530)]