2019460760

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{76379}}^1$

素因数の和:77051

約数の個数: 32

約数和(自身を含む): 4550720400

約数和(自身を除く): 2531259640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2644, 3305, 5288, 6610, 13220, 26440, 76379, 152758, 305516, 381895, 611032, 763790, 1527580, 3055160, 50486519, 100973038, 201946076, 252432595, 403892152, 504865190, 1009730380, 2019460760]

約数ペア:

[(1, 2019460760), (2, 1009730380), (4, 504865190), (5, 403892152), (8, 252432595), (10, 201946076), (20, 100973038), (40, 50486519), (661, 3055160), (1322, 1527580), (2644, 763790), (3305, 611032), (5288, 381895), (6610, 305516), (13220, 152758), (26440, 76379)]