18837400

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{971}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 44294040

約数和(自身を除く): 25456640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 971, 1940, 1942, 2425, 3880, 3884, 4850, 4855, 7768, 9700, 9710, 19400, 19420, 24275, 38840, 48550, 94187, 97100, 188374, 194200, 376748, 470935, 753496, 941870, 1883740, 2354675, 3767480, 4709350, 9418700, 18837400]

約数ペア:

[(1, 18837400), (2, 9418700), (4, 4709350), (5, 3767480), (8, 2354675), (10, 1883740), (20, 941870), (25, 753496), (40, 470935), (50, 376748), (97, 194200), (100, 188374), (194, 97100), (200, 94187), (388, 48550), (485, 38840), (776, 24275), (970, 19420), (971, 19400), (1940, 9710), (1942, 9700), (2425, 7768), (3880, 4855), (3884, 4850)]