28248820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{941}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 63302400

約数和(自身を除く): 35053580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 941, 1501, 1580, 1882, 3002, 3764, 4705, 6004, 7505, 9410, 15010, 17879, 18820, 30020, 35758, 71516, 74339, 89395, 148678, 178790, 297356, 357580, 371695, 743390, 1412441, 1486780, 2824882, 5649764, 7062205, 14124410, 28248820]

約数ペア:

[(1, 28248820), (2, 14124410), (4, 7062205), (5, 5649764), (10, 2824882), (19, 1486780), (20, 1412441), (38, 743390), (76, 371695), (79, 357580), (95, 297356), (158, 178790), (190, 148678), (316, 89395), (380, 74339), (395, 71516), (790, 35758), (941, 30020), (1501, 18820), (1580, 17879), (1882, 15010), (3002, 9410), (3764, 7505), (4705, 6004)]