1398479920

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{56209}}^1$

素因数の和:56533

約数の個数: 40

約数和(自身を含む): 3261978720

約数和(自身を除く): 1863498800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2488, 3110, 4976, 6220, 12440, 24880, 56209, 112418, 224836, 281045, 449672, 562090, 899344, 1124180, 2248360, 4496720, 17480999, 34961998, 69923996, 87404995, 139847992, 174809990, 279695984, 349619980, 699239960, 1398479920]

約数ペア:

[(1, 1398479920), (2, 699239960), (4, 349619980), (5, 279695984), (8, 174809990), (10, 139847992), (16, 87404995), (20, 69923996), (40, 34961998), (80, 17480999), (311, 4496720), (622, 2248360), (1244, 1124180), (1555, 899344), (2488, 562090), (3110, 449672), (4976, 281045), (6220, 224836), (12440, 112418), (24880, 56209)]