20880451564

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1\times {\mathrm{15461}}^1$

素因数の和:15958

約数の個数: 48

約数和(自身を含む): 42185283840

約数和(自身を除く): 21304832276

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 347, 556, 694, 973, 1388, 1946, 2429, 3892, 4858, 9716, 15461, 30922, 48233, 61844, 96466, 108227, 192932, 216454, 337631, 432908, 675262, 1350524, 2149079, 4298158, 5364967, 8596316, 10729934, 15043553, 21459868, 30087106, 37554769, 60174212, 75109538, 150219076, 745730413, 1491460826, 2982921652, 5220112891, 10440225782, 20880451564]

約数ペア:

[(1, 20880451564), (2, 10440225782), (4, 5220112891), (7, 2982921652), (14, 1491460826), (28, 745730413), (139, 150219076), (278, 75109538), (347, 60174212), (556, 37554769), (694, 30087106), (973, 21459868), (1388, 15043553), (1946, 10729934), (2429, 8596316), (3892, 5364967), (4858, 4298158), (9716, 2149079), (15461, 1350524), (30922, 675262), (48233, 432908), (61844, 337631), (96466, 216454), (108227, 192932)]