31481008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 72182880

約数和(自身を除く): 40701872

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 208, 221, 232, 272, 307, 377, 442, 464, 493, 614, 754, 884, 986, 1228, 1508, 1768, 1972, 2456, 3016, 3536, 3944, 3991, 4912, 5219, 6032, 6409, 7888, 7982, 8903, 10438, 12818, 15964, 17806, 20876, 25636, 31928, 35612, 41752, 51272, 63856, 67847, 71224, 83504, 102544, 115739, 135694, 142448, 151351, 231478, 271388, 302702, 462956, 542776, 605404, 925912, 1085552, 1210808, 1851824, 1967563, 2421616, 3935126, 7870252, 15740504, 31481008]

約数ペア:

[(1, 31481008), (2, 15740504), (4, 7870252), (8, 3935126), (13, 2421616), (16, 1967563), (17, 1851824), (26, 1210808), (29, 1085552), (34, 925912), (52, 605404), (58, 542776), (68, 462956), (104, 302702), (116, 271388), (136, 231478), (208, 151351), (221, 142448), (232, 135694), (272, 115739), (307, 102544), (377, 83504), (442, 71224), (464, 67847), (493, 63856), (614, 51272), (754, 41752), (884, 35612), (986, 31928), (1228, 25636), (1508, 20876), (1768, 17806), (1972, 15964), (2456, 12818), (3016, 10438), (3536, 8903), (3944, 7982), (3991, 7888), (4912, 6409), (5219, 6032)]