1259140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:567

約数の個数: 24

約数和(自身を含む): 2667672

約数和(自身を除く): 1408532

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 401, 628, 785, 802, 1570, 1604, 2005, 3140, 4010, 8020, 62957, 125914, 251828, 314785, 629570, 1259140]

約数ペア:

[(1, 1259140), (2, 629570), (4, 314785), (5, 251828), (10, 125914), (20, 62957), (157, 8020), (314, 4010), (401, 3140), (628, 2005), (785, 1604), (802, 1570)]