28020505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4643}}^1$

素因数の和:4736

約数の個数: 16

約数和(自身を含む): 36111744

約数和(自身を除く): 8091239

約数列:

[1, 5, 17, 71, 85, 355, 1207, 4643, 6035, 23215, 78931, 329653, 394655, 1648265, 5604101, 28020505]

約数ペア:

[(1, 28020505), (5, 5604101), (17, 1648265), (71, 394655), (85, 329653), (355, 78931), (1207, 23215), (4643, 6035)]