81641808

素因数分解:

$2^4\times 3^2\times {\mathrm{211}}^1\times {\mathrm{2687}}^1$

素因数の和:2912

約数の個数: 60

約数和(自身を含む): 229651968

約数和(自身を除く): 148010160

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 211, 422, 633, 844, 1266, 1688, 1899, 2532, 2687, 3376, 3798, 5064, 5374, 7596, 8061, 10128, 10748, 15192, 16122, 21496, 24183, 30384, 32244, 42992, 48366, 64488, 96732, 128976, 193464, 386928, 566957, 1133914, 1700871, 2267828, 3401742, 4535656, 5102613, 6803484, 9071312, 10205226, 13606968, 20410452, 27213936, 40820904, 81641808]

約数ペア:

[(1, 81641808), (2, 40820904), (3, 27213936), (4, 20410452), (6, 13606968), (8, 10205226), (9, 9071312), (12, 6803484), (16, 5102613), (18, 4535656), (24, 3401742), (36, 2267828), (48, 1700871), (72, 1133914), (144, 566957), (211, 386928), (422, 193464), (633, 128976), (844, 96732), (1266, 64488), (1688, 48366), (1899, 42992), (2532, 32244), (2687, 30384), (3376, 24183), (3798, 21496), (5064, 16122), (5374, 15192), (7596, 10748), (8061, 10128)]