81266220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{21499}}^1$

素因数の和:21524

約数の個数: 96

約数和(自身を含む): 288960000

約数和(自身を除く): 207693780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 21499, 42998, 64497, 85996, 107495, 128994, 150493, 193491, 214990, 257988, 300986, 322485, 386982, 429980, 451479, 580473, 601972, 644970, 752465, 773964, 902958, 967455, 1160946, 1289940, 1354437, 1504930, 1805916, 1934910, 2257395, 2321892, 2708874, 2902365, 3009860, 3869820, 4063311, 4514790, 5417748, 5804730, 6772185, 8126622, 9029580, 11609460, 13544370, 16253244, 20316555, 27088740, 40633110, 81266220]

約数ペア:

[(1, 81266220), (2, 40633110), (3, 27088740), (4, 20316555), (5, 16253244), (6, 13544370), (7, 11609460), (9, 9029580), (10, 8126622), (12, 6772185), (14, 5804730), (15, 5417748), (18, 4514790), (20, 4063311), (21, 3869820), (27, 3009860), (28, 2902365), (30, 2708874), (35, 2321892), (36, 2257395), (42, 1934910), (45, 1805916), (54, 1504930), (60, 1354437), (63, 1289940), (70, 1160946), (84, 967455), (90, 902958), (105, 773964), (108, 752465), (126, 644970), (135, 601972), (140, 580473), (180, 451479), (189, 429980), (210, 386982), (252, 322485), (270, 300986), (315, 257988), (378, 214990), (420, 193491), (540, 150493), (630, 128994), (756, 107495), (945, 85996), (1260, 64497), (1890, 42998), (3780, 21499)]