8876780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 20545056

約数和(自身を除く): 11668276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 257, 314, 514, 628, 785, 1028, 1285, 1570, 1727, 2570, 2827, 3140, 3454, 5140, 5654, 6908, 8635, 11308, 14135, 17270, 28270, 34540, 40349, 56540, 80698, 161396, 201745, 403490, 443839, 806980, 887678, 1775356, 2219195, 4438390, 8876780]

約数ペア:

[(1, 8876780), (2, 4438390), (4, 2219195), (5, 1775356), (10, 887678), (11, 806980), (20, 443839), (22, 403490), (44, 201745), (55, 161396), (110, 80698), (157, 56540), (220, 40349), (257, 34540), (314, 28270), (514, 17270), (628, 14135), (785, 11308), (1028, 8635), (1285, 6908), (1570, 5654), (1727, 5140), (2570, 3454), (2827, 3140)]