1255362580

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1\times {\mathrm{997}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 2662336656

約数和(自身を除く): 1406974076

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 401, 628, 785, 802, 997, 1570, 1604, 1994, 2005, 3140, 3988, 4010, 4985, 8020, 9970, 19940, 62957, 125914, 156529, 251828, 313058, 314785, 399797, 626116, 629570, 782645, 799594, 1259140, 1565290, 1599188, 1998985, 3130580, 3997970, 7995940, 62768129, 125536258, 251072516, 313840645, 627681290, 1255362580]

約数ペア:

[(1, 1255362580), (2, 627681290), (4, 313840645), (5, 251072516), (10, 125536258), (20, 62768129), (157, 7995940), (314, 3997970), (401, 3130580), (628, 1998985), (785, 1599188), (802, 1565290), (997, 1259140), (1570, 799594), (1604, 782645), (1994, 629570), (2005, 626116), (3140, 399797), (3988, 314785), (4010, 313058), (4985, 251828), (8020, 156529), (9970, 125914), (19940, 62957)]