290339956

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{647}}^1\times {\mathrm{2609}}^1$

素因数の和:3303

約数の個数: 24

約数和(自身を含む): 520914240

約数和(自身を除く): 230574284

約数列:

[1, 2, 4, 43, 86, 172, 647, 1294, 2588, 2609, 5218, 10436, 27821, 55642, 111284, 112187, 224374, 448748, 1688023, 3376046, 6752092, 72584989, 145169978, 290339956]

約数ペア:

[(1, 290339956), (2, 145169978), (4, 72584989), (43, 6752092), (86, 3376046), (172, 1688023), (647, 448748), (1294, 224374), (2588, 112187), (2609, 111284), (5218, 55642), (10436, 27821)]