20254180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24742940

約数列:

[1, 2, 4, 5, 10, 20, 29, 47, 58, 94, 116, 145, 188, 235, 290, 470, 580, 743, 940, 1363, 1486, 2726, 2972, 3715, 5452, 6815, 7430, 13630, 14860, 21547, 27260, 34921, 43094, 69842, 86188, 107735, 139684, 174605, 215470, 349210, 430940, 698420, 1012709, 2025418, 4050836, 5063545, 10127090, 20254180]

約数ペア:

[(1, 20254180), (2, 10127090), (4, 5063545), (5, 4050836), (10, 2025418), (20, 1012709), (29, 698420), (47, 430940), (58, 349210), (94, 215470), (116, 174605), (145, 139684), (188, 107735), (235, 86188), (290, 69842), (470, 43094), (580, 34921), (743, 27260), (940, 21547), (1363, 14860), (1486, 13630), (2726, 7430), (2972, 6815), (3715, 5452)]