28109080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13259}}^1$

素因数の和:13323

約数の個数: 32

約数和(自身を含む): 64443600

約数和(自身を除く): 36334520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 13259, 26518, 53036, 66295, 106072, 132590, 265180, 530360, 702727, 1405454, 2810908, 3513635, 5621816, 7027270, 14054540, 28109080]

約数ペア:

[(1, 28109080), (2, 14054540), (4, 7027270), (5, 5621816), (8, 3513635), (10, 2810908), (20, 1405454), (40, 702727), (53, 530360), (106, 265180), (212, 132590), (265, 106072), (424, 66295), (530, 53036), (1060, 26518), (2120, 13259)]