4321880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1049}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 9828000

約数和(自身を除く): 5506120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 1049, 2060, 2098, 4120, 4196, 5245, 8392, 10490, 20980, 41960, 108047, 216094, 432188, 540235, 864376, 1080470, 2160940, 4321880]

約数ペア:

[(1, 4321880), (2, 2160940), (4, 1080470), (5, 864376), (8, 540235), (10, 432188), (20, 216094), (40, 108047), (103, 41960), (206, 20980), (412, 10490), (515, 8392), (824, 5245), (1030, 4196), (1049, 4120), (2060, 2098)]