208938700

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 464282784

約数和(自身を除く): 255344084

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 137, 151, 202, 274, 302, 404, 505, 548, 604, 685, 755, 1010, 1370, 1510, 2020, 2525, 2740, 3020, 3425, 3775, 5050, 6850, 7550, 10100, 13700, 13837, 15100, 15251, 20687, 27674, 30502, 41374, 55348, 61004, 69185, 76255, 82748, 103435, 138370, 152510, 206870, 276740, 305020, 345925, 381275, 413740, 517175, 691850, 762550, 1034350, 1383700, 1525100, 2068700, 2089387, 4178774, 8357548, 10446935, 20893870, 41787740, 52234675, 104469350, 208938700]

約数ペア:

[(1, 208938700), (2, 104469350), (4, 52234675), (5, 41787740), (10, 20893870), (20, 10446935), (25, 8357548), (50, 4178774), (100, 2089387), (101, 2068700), (137, 1525100), (151, 1383700), (202, 1034350), (274, 762550), (302, 691850), (404, 517175), (505, 413740), (548, 381275), (604, 345925), (685, 305020), (755, 276740), (1010, 206870), (1370, 152510), (1510, 138370), (2020, 103435), (2525, 82748), (2740, 76255), (3020, 69185), (3425, 61004), (3775, 55348), (5050, 41374), (6850, 30502), (7550, 27674), (10100, 20687), (13700, 15251), (13837, 15100)]