81221200

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10687}}^1$

素因数の和:10724

約数の個数: 60

約数和(自身を含む): 205423360

約数和(自身を除く): 124202160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 10687, 21374, 42748, 53435, 85496, 106870, 170992, 203053, 213740, 267175, 406106, 427480, 534350, 812212, 854960, 1015265, 1068700, 1624424, 2030530, 2137400, 3248848, 4061060, 4274800, 5076325, 8122120, 10152650, 16244240, 20305300, 40610600, 81221200]

約数ペア:

[(1, 81221200), (2, 40610600), (4, 20305300), (5, 16244240), (8, 10152650), (10, 8122120), (16, 5076325), (19, 4274800), (20, 4061060), (25, 3248848), (38, 2137400), (40, 2030530), (50, 1624424), (76, 1068700), (80, 1015265), (95, 854960), (100, 812212), (152, 534350), (190, 427480), (200, 406106), (304, 267175), (380, 213740), (400, 203053), (475, 170992), (760, 106870), (950, 85496), (1520, 53435), (1900, 42748), (3800, 21374), (7600, 10687)]