3997000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{571}}^1$

素因数の和:599

約数の個数: 64

約数和(自身を含む): 10707840

約数和(自身を除く): 6710840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 571, 700, 875, 1000, 1142, 1400, 1750, 2284, 2855, 3500, 3997, 4568, 5710, 7000, 7994, 11420, 14275, 15988, 19985, 22840, 28550, 31976, 39970, 57100, 71375, 79940, 99925, 114200, 142750, 159880, 199850, 285500, 399700, 499625, 571000, 799400, 999250, 1998500, 3997000]

約数ペア:

[(1, 3997000), (2, 1998500), (4, 999250), (5, 799400), (7, 571000), (8, 499625), (10, 399700), (14, 285500), (20, 199850), (25, 159880), (28, 142750), (35, 114200), (40, 99925), (50, 79940), (56, 71375), (70, 57100), (100, 39970), (125, 31976), (140, 28550), (175, 22840), (200, 19985), (250, 15988), (280, 14275), (350, 11420), (500, 7994), (571, 7000), (700, 5710), (875, 4568), (1000, 3997), (1142, 3500), (1400, 2855), (1750, 2284)]