78152180

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{21589}}^1$

素因数の和:21779

約数の個数: 24

約数和(自身を含む): 165033960

約数和(自身を除く): 86881780

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 21589, 43178, 86356, 107945, 215890, 431780, 3907609, 7815218, 15630436, 19538045, 39076090, 78152180]

約数ペア:

[(1, 78152180), (2, 39076090), (4, 19538045), (5, 15630436), (10, 7815218), (20, 3907609), (181, 431780), (362, 215890), (724, 107945), (905, 86356), (1810, 43178), (3620, 21589)]