28988575

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^2$

素因数の和:113

約数の個数: 54

約数和(自身を含む): 46408488

約数和(自身を除く): 17419913

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 77, 121, 175, 185, 259, 275, 385, 407, 605, 847, 925, 1295, 1369, 1925, 2035, 2849, 3025, 4235, 4477, 6475, 6845, 9583, 10175, 14245, 15059, 21175, 22385, 31339, 34225, 47915, 71225, 75295, 105413, 111925, 156695, 165649, 239575, 376475, 527065, 783475, 828245, 1159543, 2635325, 4141225, 5797715, 28988575]

約数ペア:

[(1, 28988575), (5, 5797715), (7, 4141225), (11, 2635325), (25, 1159543), (35, 828245), (37, 783475), (55, 527065), (77, 376475), (121, 239575), (175, 165649), (185, 156695), (259, 111925), (275, 105413), (385, 75295), (407, 71225), (605, 47915), (847, 34225), (925, 31339), (1295, 22385), (1369, 21175), (1925, 15059), (2035, 14245), (2849, 10175), (3025, 9583), (4235, 6845), (4477, 6475)]