81983412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1237}}^1$

素因数の和:1517

約数の個数: 72

約数和(自身を含む): 237933696

約数和(自身を除く): 155950284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 263, 526, 789, 1052, 1237, 1578, 1841, 2367, 2474, 3156, 3682, 3711, 4734, 4948, 5523, 7364, 7422, 8659, 9468, 11046, 11133, 14844, 16569, 17318, 22092, 22266, 25977, 33138, 34636, 44532, 51954, 66276, 77931, 103908, 155862, 311724, 325331, 650662, 975993, 1301324, 1951986, 2277317, 2927979, 3903972, 4554634, 5855958, 6831951, 9109268, 11711916, 13663902, 20495853, 27327804, 40991706, 81983412]

約数ペア:

[(1, 81983412), (2, 40991706), (3, 27327804), (4, 20495853), (6, 13663902), (7, 11711916), (9, 9109268), (12, 6831951), (14, 5855958), (18, 4554634), (21, 3903972), (28, 2927979), (36, 2277317), (42, 1951986), (63, 1301324), (84, 975993), (126, 650662), (252, 325331), (263, 311724), (526, 155862), (789, 103908), (1052, 77931), (1237, 66276), (1578, 51954), (1841, 44532), (2367, 34636), (2474, 33138), (3156, 25977), (3682, 22266), (3711, 22092), (4734, 17318), (4948, 16569), (5523, 14844), (7364, 11133), (7422, 11046), (8659, 9468)]