18756760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{907}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 47070720

約数和(自身を除く): 28313960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 907, 940, 1034, 1814, 1880, 2068, 2585, 3628, 4136, 4535, 5170, 7256, 9070, 9977, 10340, 18140, 19954, 20680, 36280, 39908, 42629, 49885, 79816, 85258, 99770, 170516, 199540, 213145, 341032, 399080, 426290, 468919, 852580, 937838, 1705160, 1875676, 2344595, 3751352, 4689190, 9378380, 18756760]

約数ペア:

[(1, 18756760), (2, 9378380), (4, 4689190), (5, 3751352), (8, 2344595), (10, 1875676), (11, 1705160), (20, 937838), (22, 852580), (40, 468919), (44, 426290), (47, 399080), (55, 341032), (88, 213145), (94, 199540), (110, 170516), (188, 99770), (220, 85258), (235, 79816), (376, 49885), (440, 42629), (470, 39908), (517, 36280), (907, 20680), (940, 19954), (1034, 18140), (1814, 10340), (1880, 9977), (2068, 9070), (2585, 7256), (3628, 5170), (4136, 4535)]