81969804

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{3919}}^1$

素因数の和:4019

約数の個数: 72

約数和(自身を含む): 239715840

約数和(自身を除く): 157746036

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 83, 84, 126, 166, 249, 252, 332, 498, 581, 747, 996, 1162, 1494, 1743, 2324, 2988, 3486, 3919, 5229, 6972, 7838, 10458, 11757, 15676, 20916, 23514, 27433, 35271, 47028, 54866, 70542, 82299, 109732, 141084, 164598, 246897, 325277, 329196, 493794, 650554, 975831, 987588, 1301108, 1951662, 2276939, 2927493, 3903324, 4553878, 5854986, 6830817, 9107756, 11709972, 13661634, 20492451, 27323268, 40984902, 81969804]

約数ペア:

[(1, 81969804), (2, 40984902), (3, 27323268), (4, 20492451), (6, 13661634), (7, 11709972), (9, 9107756), (12, 6830817), (14, 5854986), (18, 4553878), (21, 3903324), (28, 2927493), (36, 2276939), (42, 1951662), (63, 1301108), (83, 987588), (84, 975831), (126, 650554), (166, 493794), (249, 329196), (252, 325277), (332, 246897), (498, 164598), (581, 141084), (747, 109732), (996, 82299), (1162, 70542), (1494, 54866), (1743, 47028), (2324, 35271), (2988, 27433), (3486, 23514), (3919, 20916), (5229, 15676), (6972, 11757), (7838, 10458)]