20001930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51287}}^1$

素因数の和:51310

約数の個数: 32

約数和(自身を含む): 51698304

約数和(自身を除く): 31696374

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51287, 102574, 153861, 256435, 307722, 512870, 666731, 769305, 1333462, 1538610, 2000193, 3333655, 4000386, 6667310, 10000965, 20001930]

約数ペア:

[(1, 20001930), (2, 10000965), (3, 6667310), (5, 4000386), (6, 3333655), (10, 2000193), (13, 1538610), (15, 1333462), (26, 769305), (30, 666731), (39, 512870), (65, 307722), (78, 256435), (130, 153861), (195, 102574), (390, 51287)]