28487330

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40123}}^1$

素因数の和:40201

約数の個数: 16

約数和(自身を含む): 52000704

約数和(自身を除く): 23513374

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40123, 80246, 200615, 401230, 2848733, 5697466, 14243665, 28487330]

約数ペア:

[(1, 28487330), (2, 14243665), (5, 5697466), (10, 2848733), (71, 401230), (142, 200615), (355, 80246), (710, 40123)]