1319688140

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{148949}}^1$

素因数の和:149401

約数の個数: 24

約数和(自身を含む): 2777619600

約数和(自身を除く): 1457931460

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8860, 148949, 297898, 595796, 744745, 1489490, 2978980, 65984407, 131968814, 263937628, 329922035, 659844070, 1319688140]

約数ペア:

[(1, 1319688140), (2, 659844070), (4, 329922035), (5, 263937628), (10, 131968814), (20, 65984407), (443, 2978980), (886, 1489490), (1772, 744745), (2215, 595796), (4430, 297898), (8860, 148949)]