140230180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{78781}}^1$

素因数の和:78879

約数の個数: 24

約数和(自身を含む): 297795960

約数和(自身を除く): 157565780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 78781, 157562, 315124, 393905, 787810, 1575620, 7011509, 14023018, 28046036, 35057545, 70115090, 140230180]

約数ペア:

[(1, 140230180), (2, 70115090), (4, 35057545), (5, 28046036), (10, 14023018), (20, 7011509), (89, 1575620), (178, 787810), (356, 393905), (445, 315124), (890, 157562), (1780, 78781)]