20247825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1093}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 37983680

約数和(自身を除く): 17735855

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1093, 1235, 1425, 3279, 3705, 5465, 6175, 14209, 16395, 18525, 20767, 27325, 42627, 62301, 71045, 81975, 103835, 213135, 269971, 311505, 355225, 519175, 809913, 1065675, 1349855, 1557525, 4049565, 6749275, 20247825]

約数ペア:

[(1, 20247825), (3, 6749275), (5, 4049565), (13, 1557525), (15, 1349855), (19, 1065675), (25, 809913), (39, 519175), (57, 355225), (65, 311505), (75, 269971), (95, 213135), (195, 103835), (247, 81975), (285, 71045), (325, 62301), (475, 42627), (741, 27325), (975, 20767), (1093, 18525), (1235, 16395), (1425, 14209), (3279, 6175), (3705, 5465)]