1285207051340

素因数分解:

$2^2\times 5^1\times {\mathrm{3259}}^1\times {\mathrm{19717813}}^1$

素因数の和:19721081

約数の個数: 24

約数和(自身を含む): 2699763092880

約数和(自身を除く): 1414556041540

約数列:

[1, 2, 4, 5, 10, 20, 3259, 6518, 13036, 16295, 32590, 65180, 19717813, 39435626, 78871252, 98589065, 197178130, 394356260, 64260352567, 128520705134, 257041410268, 321301762835, 642603525670, 1285207051340]

約数ペア:

[(1, 1285207051340), (2, 642603525670), (4, 321301762835), (5, 257041410268), (10, 128520705134), (20, 64260352567), (3259, 394356260), (6518, 197178130), (13036, 98589065), (16295, 78871252), (32590, 39435626), (65180, 19717813)]