313640450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{70481}}^1$

素因数の和:70582

約数の個数: 24

約数和(自身を含む): 589934340

約数和(自身を除く): 276293890

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 70481, 140962, 352405, 704810, 1762025, 3524050, 6272809, 12545618, 31364045, 62728090, 156820225, 313640450]

約数ペア:

[(1, 313640450), (2, 156820225), (5, 62728090), (10, 31364045), (25, 12545618), (50, 6272809), (89, 3524050), (178, 1762025), (445, 704810), (890, 352405), (2225, 140962), (4450, 70481)]