83871920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{499}}^1$

素因数の和:714

約数の個数: 80

約数和(自身を含む): 214272000

約数和(自身を除く): 130400080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 191, 220, 382, 440, 499, 764, 880, 955, 998, 1528, 1910, 1996, 2101, 2495, 3056, 3820, 3992, 4202, 4990, 5489, 7640, 7984, 8404, 9980, 10505, 10978, 15280, 16808, 19960, 21010, 21956, 27445, 33616, 39920, 42020, 43912, 54890, 84040, 87824, 95309, 109780, 168080, 190618, 219560, 381236, 439120, 476545, 762472, 953090, 1048399, 1524944, 1906180, 2096798, 3812360, 4193596, 5241995, 7624720, 8387192, 10483990, 16774384, 20967980, 41935960, 83871920]

約数ペア:

[(1, 83871920), (2, 41935960), (4, 20967980), (5, 16774384), (8, 10483990), (10, 8387192), (11, 7624720), (16, 5241995), (20, 4193596), (22, 3812360), (40, 2096798), (44, 1906180), (55, 1524944), (80, 1048399), (88, 953090), (110, 762472), (176, 476545), (191, 439120), (220, 381236), (382, 219560), (440, 190618), (499, 168080), (764, 109780), (880, 95309), (955, 87824), (998, 84040), (1528, 54890), (1910, 43912), (1996, 42020), (2101, 39920), (2495, 33616), (3056, 27445), (3820, 21956), (3992, 21010), (4202, 19960), (4990, 16808), (5489, 15280), (7640, 10978), (7984, 10505), (8404, 9980)]