18676040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3359}}^1$

素因数の和:3509

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 23659960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 3359, 5560, 6718, 13436, 16795, 26872, 33590, 67180, 134360, 466901, 933802, 1867604, 2334505, 3735208, 4669010, 9338020, 18676040]

約数ペア:

[(1, 18676040), (2, 9338020), (4, 4669010), (5, 3735208), (8, 2334505), (10, 1867604), (20, 933802), (40, 466901), (139, 134360), (278, 67180), (556, 33590), (695, 26872), (1112, 16795), (1390, 13436), (2780, 6718), (3359, 5560)]