12668720

素因数分解:

$2^4\times 5^1\times {\mathrm{158359}}^1$

素因数の和:158372

約数の個数: 20

約数和(自身を含む): 29454960

約数和(自身を除く): 16786240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158359, 316718, 633436, 791795, 1266872, 1583590, 2533744, 3167180, 6334360, 12668720]

約数ペア:

[(1, 12668720), (2, 6334360), (4, 3167180), (5, 2533744), (8, 1583590), (10, 1266872), (16, 791795), (20, 633436), (40, 316718), (80, 158359)]