86490620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139501}}^1$

素因数の和:139541

約数の個数: 24

約数和(自身を含む): 187490688

約数和(自身を除く): 101000068

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 139501, 279002, 558004, 697505, 1395010, 2790020, 4324531, 8649062, 17298124, 21622655, 43245310, 86490620]

約数ペア:

[(1, 86490620), (2, 43245310), (4, 21622655), (5, 17298124), (10, 8649062), (20, 4324531), (31, 2790020), (62, 1395010), (124, 697505), (155, 558004), (310, 279002), (620, 139501)]