18628870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 37050912

約数和(自身を除く): 18422042

約数列:

[1, 2, 5, 10, 13, 26, 65, 73, 130, 146, 151, 169, 302, 338, 365, 730, 755, 845, 949, 1510, 1690, 1898, 1963, 3926, 4745, 9490, 9815, 11023, 12337, 19630, 22046, 24674, 25519, 51038, 55115, 61685, 110230, 123370, 127595, 143299, 255190, 286598, 716495, 1432990, 1862887, 3725774, 9314435, 18628870]

約数ペア:

[(1, 18628870), (2, 9314435), (5, 3725774), (10, 1862887), (13, 1432990), (26, 716495), (65, 286598), (73, 255190), (130, 143299), (146, 127595), (151, 123370), (169, 110230), (302, 61685), (338, 55115), (365, 51038), (730, 25519), (755, 24674), (845, 22046), (949, 19630), (1510, 12337), (1690, 11023), (1898, 9815), (1963, 9490), (3926, 4745)]