28914380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{787}}^1$

素因数の和:974

約数の個数: 48

約数和(自身を含む): 66721536

約数和(自身を除く): 37807156

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 220, 334, 668, 787, 835, 1574, 1670, 1837, 3148, 3340, 3674, 3935, 7348, 7870, 8657, 9185, 15740, 17314, 18370, 34628, 36740, 43285, 86570, 131429, 173140, 262858, 525716, 657145, 1314290, 1445719, 2628580, 2891438, 5782876, 7228595, 14457190, 28914380]

約数ペア:

[(1, 28914380), (2, 14457190), (4, 7228595), (5, 5782876), (10, 2891438), (11, 2628580), (20, 1445719), (22, 1314290), (44, 657145), (55, 525716), (110, 262858), (167, 173140), (220, 131429), (334, 86570), (668, 43285), (787, 36740), (835, 34628), (1574, 18370), (1670, 17314), (1837, 15740), (3148, 9185), (3340, 8657), (3674, 7870), (3935, 7348)]