20512690585

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{1109}}^1\times {\mathrm{52103}}^1$

素因数の和:53288

約数の個数: 16

約数和(自身を含む): 24984910080

約数和(自身を除く): 4472219495

約数列:

[1, 5, 71, 355, 1109, 5545, 52103, 78739, 260515, 393695, 3699313, 18496565, 57782227, 288911135, 4102538117, 20512690585]

約数ペア:

[(1, 20512690585), (5, 4102538117), (71, 288911135), (355, 57782227), (1109, 18496565), (5545, 3699313), (52103, 393695), (78739, 260515)]