31816180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 96

約数和(自身を含む): 79252992

約数和(自身を除く): 47436812

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 47, 55, 68, 85, 94, 110, 170, 181, 187, 188, 220, 235, 340, 362, 374, 470, 517, 724, 748, 799, 905, 935, 940, 1034, 1598, 1810, 1870, 1991, 2068, 2585, 3077, 3196, 3620, 3740, 3982, 3995, 5170, 6154, 7964, 7990, 8507, 8789, 9955, 10340, 12308, 15385, 15980, 17014, 17578, 19910, 30770, 33847, 34028, 35156, 39820, 42535, 43945, 61540, 67694, 85070, 87890, 93577, 135388, 144619, 169235, 170140, 175780, 187154, 289238, 338470, 374308, 467885, 578476, 676940, 723095, 935770, 1446190, 1590809, 1871540, 2892380, 3181618, 6363236, 7954045, 15908090, 31816180]

約数ペア:

[(1, 31816180), (2, 15908090), (4, 7954045), (5, 6363236), (10, 3181618), (11, 2892380), (17, 1871540), (20, 1590809), (22, 1446190), (34, 935770), (44, 723095), (47, 676940), (55, 578476), (68, 467885), (85, 374308), (94, 338470), (110, 289238), (170, 187154), (181, 175780), (187, 170140), (188, 169235), (220, 144619), (235, 135388), (340, 93577), (362, 87890), (374, 85070), (470, 67694), (517, 61540), (724, 43945), (748, 42535), (799, 39820), (905, 35156), (935, 34028), (940, 33847), (1034, 30770), (1598, 19910), (1810, 17578), (1870, 17014), (1991, 15980), (2068, 15385), (2585, 12308), (3077, 10340), (3196, 9955), (3620, 8789), (3740, 8507), (3982, 7990), (3995, 7964), (5170, 6154)]