28350020

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{7919}}^1$

素因数の和:8107

約数の個数: 24

約数和(自身を含む): 59875200

約数和(自身を除く): 31525180

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 7919, 15838, 31676, 39595, 79190, 158380, 1417501, 2835002, 5670004, 7087505, 14175010, 28350020]

約数ペア:

[(1, 28350020), (2, 14175010), (4, 7087505), (5, 5670004), (10, 2835002), (20, 1417501), (179, 158380), (358, 79190), (716, 39595), (895, 31676), (1790, 15838), (3580, 7919)]