40017680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 80

約数和(自身を含む): 98565120

約数和(自身を除く): 58547440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 47, 58, 80, 94, 116, 145, 188, 232, 235, 290, 367, 376, 464, 470, 580, 734, 752, 940, 1160, 1363, 1468, 1835, 1880, 2320, 2726, 2936, 3670, 3760, 5452, 5872, 6815, 7340, 10643, 10904, 13630, 14680, 17249, 21286, 21808, 27260, 29360, 34498, 42572, 53215, 54520, 68996, 85144, 86245, 106430, 109040, 137992, 170288, 172490, 212860, 275984, 344980, 425720, 500221, 689960, 851440, 1000442, 1379920, 2000884, 2501105, 4001768, 5002210, 8003536, 10004420, 20008840, 40017680]

約数ペア:

[(1, 40017680), (2, 20008840), (4, 10004420), (5, 8003536), (8, 5002210), (10, 4001768), (16, 2501105), (20, 2000884), (29, 1379920), (40, 1000442), (47, 851440), (58, 689960), (80, 500221), (94, 425720), (116, 344980), (145, 275984), (188, 212860), (232, 172490), (235, 170288), (290, 137992), (367, 109040), (376, 106430), (464, 86245), (470, 85144), (580, 68996), (734, 54520), (752, 53215), (940, 42572), (1160, 34498), (1363, 29360), (1468, 27260), (1835, 21808), (1880, 21286), (2320, 17249), (2726, 14680), (2936, 13630), (3670, 10904), (3760, 10643), (5452, 7340), (5872, 6815)]