81279036

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:719

約数の個数: 72

約数和(自身を含む): 217526400

約数和(自身を除く): 136247364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 331, 342, 359, 662, 684, 718, 993, 1077, 1324, 1436, 1986, 2154, 2979, 3231, 3972, 4308, 5958, 6289, 6462, 6821, 11916, 12578, 12924, 13642, 18867, 20463, 25156, 27284, 37734, 40926, 56601, 61389, 75468, 81852, 113202, 118829, 122778, 226404, 237658, 245556, 356487, 475316, 712974, 1069461, 1425948, 2138922, 2257751, 4277844, 4515502, 6773253, 9031004, 13546506, 20319759, 27093012, 40639518, 81279036]

約数ペア:

[(1, 81279036), (2, 40639518), (3, 27093012), (4, 20319759), (6, 13546506), (9, 9031004), (12, 6773253), (18, 4515502), (19, 4277844), (36, 2257751), (38, 2138922), (57, 1425948), (76, 1069461), (114, 712974), (171, 475316), (228, 356487), (331, 245556), (342, 237658), (359, 226404), (662, 122778), (684, 118829), (718, 113202), (993, 81852), (1077, 75468), (1324, 61389), (1436, 56601), (1986, 40926), (2154, 37734), (2979, 27284), (3231, 25156), (3972, 20463), (4308, 18867), (5958, 13642), (6289, 12924), (6462, 12578), (6821, 11916)]