8267980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{809}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 20139840

約数和(自身を除く): 11871860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 809, 1022, 1460, 1618, 2044, 2555, 3236, 4045, 5110, 5663, 8090, 10220, 11326, 16180, 22652, 28315, 56630, 59057, 113260, 118114, 236228, 295285, 413399, 590570, 826798, 1181140, 1653596, 2066995, 4133990, 8267980]

約数ペア:

[(1, 8267980), (2, 4133990), (4, 2066995), (5, 1653596), (7, 1181140), (10, 826798), (14, 590570), (20, 413399), (28, 295285), (35, 236228), (70, 118114), (73, 113260), (140, 59057), (146, 56630), (292, 28315), (365, 22652), (511, 16180), (730, 11326), (809, 10220), (1022, 8090), (1460, 5663), (1618, 5110), (2044, 4045), (2555, 3236)]