19508180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:524

約数の個数: 48

約数和(自身を含む): 43754256

約数和(自身を除く): 24246076

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 181, 317, 340, 362, 634, 724, 905, 1268, 1585, 1810, 3077, 3170, 3620, 5389, 6154, 6340, 10778, 12308, 15385, 21556, 26945, 30770, 53890, 57377, 61540, 107780, 114754, 229508, 286885, 573770, 975409, 1147540, 1950818, 3901636, 4877045, 9754090, 19508180]

約数ペア:

[(1, 19508180), (2, 9754090), (4, 4877045), (5, 3901636), (10, 1950818), (17, 1147540), (20, 975409), (34, 573770), (68, 286885), (85, 229508), (170, 114754), (181, 107780), (317, 61540), (340, 57377), (362, 53890), (634, 30770), (724, 26945), (905, 21556), (1268, 15385), (1585, 12308), (1810, 10778), (3077, 6340), (3170, 6154), (3620, 5389)]