18185720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{607}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 29092360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 607, 749, 856, 1070, 1214, 1498, 2140, 2428, 2996, 3035, 3745, 4249, 4280, 4856, 5992, 6070, 7490, 8498, 12140, 14980, 16996, 21245, 24280, 29960, 33992, 42490, 64949, 84980, 129898, 169960, 259796, 324745, 454643, 519592, 649490, 909286, 1298980, 1818572, 2273215, 2597960, 3637144, 4546430, 9092860, 18185720]

約数ペア:

[(1, 18185720), (2, 9092860), (4, 4546430), (5, 3637144), (7, 2597960), (8, 2273215), (10, 1818572), (14, 1298980), (20, 909286), (28, 649490), (35, 519592), (40, 454643), (56, 324745), (70, 259796), (107, 169960), (140, 129898), (214, 84980), (280, 64949), (428, 42490), (535, 33992), (607, 29960), (749, 24280), (856, 21245), (1070, 16996), (1214, 14980), (1498, 12140), (2140, 8498), (2428, 7490), (2996, 6070), (3035, 5992), (3745, 4856), (4249, 4280)]