1155880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 64

約数和(自身を含む): 2954880

約数和(自身を除く): 1799000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 71, 74, 88, 110, 142, 148, 185, 220, 284, 296, 355, 370, 407, 440, 568, 710, 740, 781, 814, 1420, 1480, 1562, 1628, 2035, 2627, 2840, 3124, 3256, 3905, 4070, 5254, 6248, 7810, 8140, 10508, 13135, 15620, 16280, 21016, 26270, 28897, 31240, 52540, 57794, 105080, 115588, 144485, 231176, 288970, 577940, 1155880]

約数ペア:

[(1, 1155880), (2, 577940), (4, 288970), (5, 231176), (8, 144485), (10, 115588), (11, 105080), (20, 57794), (22, 52540), (37, 31240), (40, 28897), (44, 26270), (55, 21016), (71, 16280), (74, 15620), (88, 13135), (110, 10508), (142, 8140), (148, 7810), (185, 6248), (220, 5254), (284, 4070), (296, 3905), (355, 3256), (370, 3124), (407, 2840), (440, 2627), (568, 2035), (710, 1628), (740, 1562), (781, 1480), (814, 1420)]