20796870484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1873}}^1\times {\mathrm{3187}}^1$

素因数の和:5144

約数の個数: 48

約数和(自身を含む): 39812815168

約数和(自身を除く): 19015944684

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 1873, 3187, 3484, 3746, 6374, 7492, 12748, 24349, 41431, 48698, 82862, 97396, 125491, 165724, 213529, 250982, 427058, 501964, 854116, 1631383, 2775877, 3262766, 5551754, 5969251, 6525532, 11103508, 11938502, 23877004, 77600263, 155200526, 310401052, 399939817, 799879634, 1599759268, 5199217621, 10398435242, 20796870484]

約数ペア:

[(1, 20796870484), (2, 10398435242), (4, 5199217621), (13, 1599759268), (26, 799879634), (52, 399939817), (67, 310401052), (134, 155200526), (268, 77600263), (871, 23877004), (1742, 11938502), (1873, 11103508), (3187, 6525532), (3484, 5969251), (3746, 5551754), (6374, 3262766), (7492, 2775877), (12748, 1631383), (24349, 854116), (41431, 501964), (48698, 427058), (82862, 250982), (97396, 213529), (125491, 165724)]