2019011930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{419753}}^1$

素因数の和:419810

約数の個数: 32

約数和(自身を含む): 4019564304

約数和(自身を除く): 2000552374

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 419753, 839506, 2098765, 4197530, 5456789, 10913578, 15530861, 27283945, 31061722, 54567890, 77654305, 155308610, 201901193, 403802386, 1009505965, 2019011930]

約数ペア:

[(1, 2019011930), (2, 1009505965), (5, 403802386), (10, 201901193), (13, 155308610), (26, 77654305), (37, 54567890), (65, 31061722), (74, 27283945), (130, 15530861), (185, 10913578), (370, 5456789), (481, 4197530), (962, 2098765), (2405, 839506), (4810, 419753)]