321972100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1747}}^1$

素因数の和:1877

約数の個数: 72

約数和(自身を含む): 743459360

約数和(自身を除く): 421487260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 97, 100, 190, 194, 380, 388, 475, 485, 950, 970, 1747, 1843, 1900, 1940, 2425, 3494, 3686, 4850, 6988, 7372, 8735, 9215, 9700, 17470, 18430, 33193, 34940, 36860, 43675, 46075, 66386, 87350, 92150, 132772, 165965, 169459, 174700, 184300, 331930, 338918, 663860, 677836, 829825, 847295, 1659650, 1694590, 3219721, 3319300, 3389180, 4236475, 6439442, 8472950, 12878884, 16098605, 16945900, 32197210, 64394420, 80493025, 160986050, 321972100]

約数ペア:

[(1, 321972100), (2, 160986050), (4, 80493025), (5, 64394420), (10, 32197210), (19, 16945900), (20, 16098605), (25, 12878884), (38, 8472950), (50, 6439442), (76, 4236475), (95, 3389180), (97, 3319300), (100, 3219721), (190, 1694590), (194, 1659650), (380, 847295), (388, 829825), (475, 677836), (485, 663860), (950, 338918), (970, 331930), (1747, 184300), (1843, 174700), (1900, 169459), (1940, 165965), (2425, 132772), (3494, 92150), (3686, 87350), (4850, 66386), (6988, 46075), (7372, 43675), (8735, 36860), (9215, 34940), (9700, 33193), (17470, 18430)]