2021033980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{390161}}^1$

素因数の和:390214

約数の個数: 48

約数和(自身を含む): 4981588416

約数和(自身を除く): 2960554436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 390161, 780322, 1560644, 1950805, 2731127, 3901610, 5462254, 7803220, 10924508, 13655635, 14435957, 27311270, 28871914, 54622540, 57743828, 72179785, 101051699, 144359570, 202103398, 288719140, 404206796, 505258495, 1010516990, 2021033980]

約数ペア:

[(1, 2021033980), (2, 1010516990), (4, 505258495), (5, 404206796), (7, 288719140), (10, 202103398), (14, 144359570), (20, 101051699), (28, 72179785), (35, 57743828), (37, 54622540), (70, 28871914), (74, 27311270), (140, 14435957), (148, 13655635), (185, 10924508), (259, 7803220), (370, 5462254), (518, 3901610), (740, 2731127), (1036, 1950805), (1295, 1560644), (2590, 780322), (5180, 390161)]