1080520090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{639361}}^1$

素因数の和:639394

約数の個数: 24

約数和(自身を含む): 2106058428

約数和(自身を除く): 1025538338

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 639361, 1278722, 3196805, 6393610, 8311693, 16623386, 41558465, 83116930, 108052009, 216104018, 540260045, 1080520090]

約数ペア:

[(1, 1080520090), (2, 540260045), (5, 216104018), (10, 108052009), (13, 83116930), (26, 41558465), (65, 16623386), (130, 8311693), (169, 6393610), (338, 3196805), (845, 1278722), (1690, 639361)]