20613200

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1777}}^1$

素因数の和:1824

約数の個数: 60

約数和(自身を含む): 51259740

約数和(自身を除く): 30646540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1777, 2320, 2900, 3554, 5800, 7108, 8885, 11600, 14216, 17770, 28432, 35540, 44425, 51533, 71080, 88850, 103066, 142160, 177700, 206132, 257665, 355400, 412264, 515330, 710800, 824528, 1030660, 1288325, 2061320, 2576650, 4122640, 5153300, 10306600, 20613200]

約数ペア:

[(1, 20613200), (2, 10306600), (4, 5153300), (5, 4122640), (8, 2576650), (10, 2061320), (16, 1288325), (20, 1030660), (25, 824528), (29, 710800), (40, 515330), (50, 412264), (58, 355400), (80, 257665), (100, 206132), (116, 177700), (145, 142160), (200, 103066), (232, 88850), (290, 71080), (400, 51533), (464, 44425), (580, 35540), (725, 28432), (1160, 17770), (1450, 14216), (1777, 11600), (2320, 8885), (2900, 7108), (3554, 5800)]