19137680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 47072880

約数和(自身を除く): 27935200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 73, 80, 113, 116, 145, 146, 226, 232, 290, 292, 365, 452, 464, 565, 580, 584, 730, 904, 1130, 1160, 1168, 1460, 1808, 2117, 2260, 2320, 2920, 3277, 4234, 4520, 5840, 6554, 8249, 8468, 9040, 10585, 13108, 16385, 16498, 16936, 21170, 26216, 32770, 32996, 33872, 41245, 42340, 52432, 65540, 65992, 82490, 84680, 131080, 131984, 164980, 169360, 239221, 262160, 329960, 478442, 659920, 956884, 1196105, 1913768, 2392210, 3827536, 4784420, 9568840, 19137680]

約数ペア:

[(1, 19137680), (2, 9568840), (4, 4784420), (5, 3827536), (8, 2392210), (10, 1913768), (16, 1196105), (20, 956884), (29, 659920), (40, 478442), (58, 329960), (73, 262160), (80, 239221), (113, 169360), (116, 164980), (145, 131984), (146, 131080), (226, 84680), (232, 82490), (290, 65992), (292, 65540), (365, 52432), (452, 42340), (464, 41245), (565, 33872), (580, 32996), (584, 32770), (730, 26216), (904, 21170), (1130, 16936), (1160, 16498), (1168, 16385), (1460, 13108), (1808, 10585), (2117, 9040), (2260, 8468), (2320, 8249), (2920, 6554), (3277, 5840), (4234, 4520)]