20280810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 55310976

約数和(自身を除く): 35030166

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 121, 151, 165, 185, 222, 242, 302, 330, 363, 370, 407, 453, 555, 605, 726, 755, 814, 906, 1110, 1210, 1221, 1510, 1661, 1815, 2035, 2265, 2442, 3322, 3630, 4070, 4477, 4530, 4983, 5587, 6105, 8305, 8954, 9966, 11174, 12210, 13431, 16610, 16761, 18271, 22385, 24915, 26862, 27935, 33522, 36542, 44770, 49830, 54813, 55870, 61457, 67155, 83805, 91355, 109626, 122914, 134310, 167610, 182710, 184371, 274065, 307285, 368742, 548130, 614570, 676027, 921855, 1352054, 1843710, 2028081, 3380135, 4056162, 6760270, 10140405, 20280810]

約数ペア:

[(1, 20280810), (2, 10140405), (3, 6760270), (5, 4056162), (6, 3380135), (10, 2028081), (11, 1843710), (15, 1352054), (22, 921855), (30, 676027), (33, 614570), (37, 548130), (55, 368742), (66, 307285), (74, 274065), (110, 184371), (111, 182710), (121, 167610), (151, 134310), (165, 122914), (185, 109626), (222, 91355), (242, 83805), (302, 67155), (330, 61457), (363, 55870), (370, 54813), (407, 49830), (453, 44770), (555, 36542), (605, 33522), (726, 27935), (755, 26862), (814, 24915), (906, 22385), (1110, 18271), (1210, 16761), (1221, 16610), (1510, 13431), (1661, 12210), (1815, 11174), (2035, 9966), (2265, 8954), (2442, 8305), (3322, 6105), (3630, 5587), (4070, 4983), (4477, 4530)]