20618800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{2713}}^1$

素因数の和:2750

約数の個数: 60

約数和(自身を含む): 52163080

約数和(自身を除く): 31544280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 2713, 3800, 5426, 7600, 10852, 13565, 21704, 27130, 43408, 51547, 54260, 67825, 103094, 108520, 135650, 206188, 217040, 257735, 271300, 412376, 515470, 542600, 824752, 1030940, 1085200, 1288675, 2061880, 2577350, 4123760, 5154700, 10309400, 20618800]

約数ペア:

[(1, 20618800), (2, 10309400), (4, 5154700), (5, 4123760), (8, 2577350), (10, 2061880), (16, 1288675), (19, 1085200), (20, 1030940), (25, 824752), (38, 542600), (40, 515470), (50, 412376), (76, 271300), (80, 257735), (95, 217040), (100, 206188), (152, 135650), (190, 108520), (200, 103094), (304, 67825), (380, 54260), (400, 51547), (475, 43408), (760, 27130), (950, 21704), (1520, 13565), (1900, 10852), (2713, 7600), (3800, 5426)]