28508140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33149}}^1$

素因数の和:33201

約数の個数: 24

約数和(自身を含む): 61261200

約数和(自身を除く): 32753060

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 33149, 66298, 132596, 165745, 331490, 662980, 1425407, 2850814, 5701628, 7127035, 14254070, 28508140]

約数ペア:

[(1, 28508140), (2, 14254070), (4, 7127035), (5, 5701628), (10, 2850814), (20, 1425407), (43, 662980), (86, 331490), (172, 165745), (215, 132596), (430, 66298), (860, 33149)]