28526960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 120

約数和(自身を含む): 83515488

約数和(自身を除く): 54988528

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 121, 140, 154, 176, 220, 242, 280, 308, 385, 421, 440, 484, 560, 605, 616, 770, 842, 847, 880, 968, 1210, 1232, 1540, 1684, 1694, 1936, 2105, 2420, 2947, 3080, 3368, 3388, 4210, 4235, 4631, 4840, 5894, 6160, 6736, 6776, 8420, 8470, 9262, 9680, 11788, 13552, 14735, 16840, 16940, 18524, 23155, 23576, 29470, 32417, 33680, 33880, 37048, 46310, 47152, 50941, 58940, 64834, 67760, 74096, 92620, 101882, 117880, 129668, 162085, 185240, 203764, 235760, 254705, 259336, 324170, 356587, 370480, 407528, 509410, 518672, 648340, 713174, 815056, 1018820, 1296680, 1426348, 1782935, 2037640, 2593360, 2852696, 3565870, 4075280, 5705392, 7131740, 14263480, 28526960]

約数ペア:

[(1, 28526960), (2, 14263480), (4, 7131740), (5, 5705392), (7, 4075280), (8, 3565870), (10, 2852696), (11, 2593360), (14, 2037640), (16, 1782935), (20, 1426348), (22, 1296680), (28, 1018820), (35, 815056), (40, 713174), (44, 648340), (55, 518672), (56, 509410), (70, 407528), (77, 370480), (80, 356587), (88, 324170), (110, 259336), (112, 254705), (121, 235760), (140, 203764), (154, 185240), (176, 162085), (220, 129668), (242, 117880), (280, 101882), (308, 92620), (385, 74096), (421, 67760), (440, 64834), (484, 58940), (560, 50941), (605, 47152), (616, 46310), (770, 37048), (842, 33880), (847, 33680), (880, 32417), (968, 29470), (1210, 23576), (1232, 23155), (1540, 18524), (1684, 16940), (1694, 16840), (1936, 14735), (2105, 13552), (2420, 11788), (2947, 9680), (3080, 9262), (3368, 8470), (3388, 8420), (4210, 6776), (4235, 6736), (4631, 6160), (4840, 5894)]