28314260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8377}}^1$

素因数の和:8412

約数の個数: 36

約数和(自身を含む): 64393308

約数和(自身を除く): 36079048

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8377, 16754, 33508, 41885, 83770, 108901, 167540, 217802, 435604, 544505, 1089010, 1415713, 2178020, 2831426, 5662852, 7078565, 14157130, 28314260]

約数ペア:

[(1, 28314260), (2, 14157130), (4, 7078565), (5, 5662852), (10, 2831426), (13, 2178020), (20, 1415713), (26, 1089010), (52, 544505), (65, 435604), (130, 217802), (169, 167540), (260, 108901), (338, 83770), (676, 41885), (845, 33508), (1690, 16754), (3380, 8377)]