1814575720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{440431}}^1$

素因数の和:440545

約数の個数: 32

約数和(自身を含む): 4122443520

約数和(自身を除く): 2307867800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 440431, 880862, 1761724, 2202155, 3523448, 4404310, 8808620, 17617240, 45364393, 90728786, 181457572, 226821965, 362915144, 453643930, 907287860, 1814575720]

約数ペア:

[(1, 1814575720), (2, 907287860), (4, 453643930), (5, 362915144), (8, 226821965), (10, 181457572), (20, 90728786), (40, 45364393), (103, 17617240), (206, 8808620), (412, 4404310), (515, 3523448), (824, 2202155), (1030, 1761724), (2060, 880862), (4120, 440431)]