81528080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21683}}^1$

素因数の和:21743

約数の個数: 40

約数和(自身を含む): 193594752

約数和(自身を除く): 112066672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 21683, 43366, 86732, 108415, 173464, 216830, 346928, 433660, 867320, 1019101, 1734640, 2038202, 4076404, 5095505, 8152808, 10191010, 16305616, 20382020, 40764040, 81528080]

約数ペア:

[(1, 81528080), (2, 40764040), (4, 20382020), (5, 16305616), (8, 10191010), (10, 8152808), (16, 5095505), (20, 4076404), (40, 2038202), (47, 1734640), (80, 1019101), (94, 867320), (188, 433660), (235, 346928), (376, 216830), (470, 173464), (752, 108415), (940, 86732), (1880, 43366), (3760, 21683)]