19861880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21589}}^1$

素因数の和:21623

約数の個数: 32

約数和(自身を含む): 46634400

約数和(自身を除く): 26772520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21589, 43178, 86356, 107945, 172712, 215890, 431780, 496547, 863560, 993094, 1986188, 2482735, 3972376, 4965470, 9930940, 19861880]

約数ペア:

[(1, 19861880), (2, 9930940), (4, 4965470), (5, 3972376), (8, 2482735), (10, 1986188), (20, 993094), (23, 863560), (40, 496547), (46, 431780), (92, 215890), (115, 172712), (184, 107945), (230, 86356), (460, 43178), (920, 21589)]