123456460

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{78137}}^1$

素因数の和:78225

約数の個数: 24

約数和(自身を含む): 262543680

約数和(自身を除く): 139087220

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 78137, 156274, 312548, 390685, 781370, 1562740, 6172823, 12345646, 24691292, 30864115, 61728230, 123456460]

約数ペア:

[(1, 123456460), (2, 61728230), (4, 30864115), (5, 24691292), (10, 12345646), (20, 6172823), (79, 1562740), (158, 781370), (316, 390685), (395, 312548), (790, 156274), (1580, 78137)]