28585480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9281}}^1$

素因数の和:9310

約数の個数: 64

約数和(自身を含む): 80196480

約数和(自身を除く): 51611000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 9281, 18562, 37124, 46405, 64967, 74248, 92810, 102091, 129934, 185620, 204182, 259868, 324835, 371240, 408364, 510455, 519736, 649670, 714637, 816728, 1020910, 1299340, 1429274, 2041820, 2598680, 2858548, 3573185, 4083640, 5717096, 7146370, 14292740, 28585480]

約数ペア:

[(1, 28585480), (2, 14292740), (4, 7146370), (5, 5717096), (7, 4083640), (8, 3573185), (10, 2858548), (11, 2598680), (14, 2041820), (20, 1429274), (22, 1299340), (28, 1020910), (35, 816728), (40, 714637), (44, 649670), (55, 519736), (56, 510455), (70, 408364), (77, 371240), (88, 324835), (110, 259868), (140, 204182), (154, 185620), (220, 129934), (280, 102091), (308, 92810), (385, 74248), (440, 64967), (616, 46405), (770, 37124), (1540, 18562), (3080, 9281)]