309807080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 791285760

約数和(自身を除く): 481478680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 71, 88, 94, 110, 142, 188, 211, 220, 235, 284, 355, 376, 422, 440, 470, 517, 568, 710, 781, 844, 940, 1034, 1055, 1420, 1562, 1688, 1880, 2068, 2110, 2321, 2585, 2840, 3124, 3337, 3905, 4136, 4220, 4642, 5170, 6248, 6674, 7810, 8440, 9284, 9917, 10340, 11605, 13348, 14981, 15620, 16685, 18568, 19834, 20680, 23210, 26696, 29962, 31240, 33370, 36707, 39668, 46420, 49585, 59924, 66740, 73414, 74905, 79336, 92840, 99170, 109087, 119848, 133480, 146828, 149810, 164791, 183535, 198340, 218174, 293656, 299620, 329582, 367070, 396680, 436348, 545435, 599240, 659164, 704107, 734140, 823955, 872696, 1090870, 1318328, 1408214, 1468280, 1647910, 2181740, 2816428, 3295820, 3520535, 4363480, 5632856, 6591640, 7041070, 7745177, 14082140, 15490354, 28164280, 30980708, 38725885, 61961416, 77451770, 154903540, 309807080]

約数ペア:

[(1, 309807080), (2, 154903540), (4, 77451770), (5, 61961416), (8, 38725885), (10, 30980708), (11, 28164280), (20, 15490354), (22, 14082140), (40, 7745177), (44, 7041070), (47, 6591640), (55, 5632856), (71, 4363480), (88, 3520535), (94, 3295820), (110, 2816428), (142, 2181740), (188, 1647910), (211, 1468280), (220, 1408214), (235, 1318328), (284, 1090870), (355, 872696), (376, 823955), (422, 734140), (440, 704107), (470, 659164), (517, 599240), (568, 545435), (710, 436348), (781, 396680), (844, 367070), (940, 329582), (1034, 299620), (1055, 293656), (1420, 218174), (1562, 198340), (1688, 183535), (1880, 164791), (2068, 149810), (2110, 146828), (2321, 133480), (2585, 119848), (2840, 109087), (3124, 99170), (3337, 92840), (3905, 79336), (4136, 74905), (4220, 73414), (4642, 66740), (5170, 59924), (6248, 49585), (6674, 46420), (7810, 39668), (8440, 36707), (9284, 33370), (9917, 31240), (10340, 29962), (11605, 26696), (13348, 23210), (14981, 20680), (15620, 19834), (16685, 18568)]