2021090000

素因数分解:

$2^4\times 5^4\times {\mathrm{202109}}^1$

素因数の和:202137

約数の個数: 50

約数和(自身を含む): 4893285210

約数和(自身を除く): 2872195210

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 202109, 404218, 808436, 1010545, 1616872, 2021090, 3233744, 4042180, 5052725, 8084360, 10105450, 16168720, 20210900, 25263625, 40421800, 50527250, 80843600, 101054500, 126318125, 202109000, 252636250, 404218000, 505272500, 1010545000, 2021090000]

約数ペア:

[(1, 2021090000), (2, 1010545000), (4, 505272500), (5, 404218000), (8, 252636250), (10, 202109000), (16, 126318125), (20, 101054500), (25, 80843600), (40, 50527250), (50, 40421800), (80, 25263625), (100, 20210900), (125, 16168720), (200, 10105450), (250, 8084360), (400, 5052725), (500, 4042180), (625, 3233744), (1000, 2021090), (1250, 1616872), (2000, 1010545), (2500, 808436), (5000, 404218), (10000, 202109)]