28643220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17681}}^1$

素因数の和:17702

約数の個数: 60

約数和(自身を含む): 89859924

約数和(自身を除く): 61216704

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 17681, 35362, 53043, 70724, 88405, 106086, 159129, 176810, 212172, 265215, 318258, 353620, 477387, 530430, 636516, 795645, 954774, 1060860, 1432161, 1591290, 1909548, 2386935, 2864322, 3182580, 4773870, 5728644, 7160805, 9547740, 14321610, 28643220]

約数ペア:

[(1, 28643220), (2, 14321610), (3, 9547740), (4, 7160805), (5, 5728644), (6, 4773870), (9, 3182580), (10, 2864322), (12, 2386935), (15, 1909548), (18, 1591290), (20, 1432161), (27, 1060860), (30, 954774), (36, 795645), (45, 636516), (54, 530430), (60, 477387), (81, 353620), (90, 318258), (108, 265215), (135, 212172), (162, 176810), (180, 159129), (270, 106086), (324, 88405), (405, 70724), (540, 53043), (810, 35362), (1620, 17681)]