18712740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7253}}^1$

素因数の和:7308

約数の個数: 48

約数和(自身を含む): 53621568

約数和(自身を除く): 34908828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7253, 14506, 21759, 29012, 36265, 43518, 72530, 87036, 108795, 145060, 217590, 311879, 435180, 623758, 935637, 1247516, 1559395, 1871274, 3118790, 3742548, 4678185, 6237580, 9356370, 18712740]

約数ペア:

[(1, 18712740), (2, 9356370), (3, 6237580), (4, 4678185), (5, 3742548), (6, 3118790), (10, 1871274), (12, 1559395), (15, 1247516), (20, 935637), (30, 623758), (43, 435180), (60, 311879), (86, 217590), (129, 145060), (172, 108795), (215, 87036), (258, 72530), (430, 43518), (516, 36265), (645, 29012), (860, 21759), (1290, 14506), (2580, 7253)]