6639920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 17998848

約数和(自身を除く): 11358928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 167, 280, 284, 334, 355, 497, 560, 568, 668, 710, 835, 994, 1136, 1169, 1336, 1420, 1670, 1988, 2338, 2485, 2672, 2840, 3340, 3976, 4676, 4970, 5680, 5845, 6680, 7952, 9352, 9940, 11690, 11857, 13360, 18704, 19880, 23380, 23714, 39760, 46760, 47428, 59285, 82999, 93520, 94856, 118570, 165998, 189712, 237140, 331996, 414995, 474280, 663992, 829990, 948560, 1327984, 1659980, 3319960, 6639920]

約数ペア:

[(1, 6639920), (2, 3319960), (4, 1659980), (5, 1327984), (7, 948560), (8, 829990), (10, 663992), (14, 474280), (16, 414995), (20, 331996), (28, 237140), (35, 189712), (40, 165998), (56, 118570), (70, 94856), (71, 93520), (80, 82999), (112, 59285), (140, 47428), (142, 46760), (167, 39760), (280, 23714), (284, 23380), (334, 19880), (355, 18704), (497, 13360), (560, 11857), (568, 11690), (668, 9940), (710, 9352), (835, 7952), (994, 6680), (1136, 5845), (1169, 5680), (1336, 4970), (1420, 4676), (1670, 3976), (1988, 3340), (2338, 2840), (2485, 2672)]