1813410520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{621031}}^1$

素因数の和:621115

約数の個数: 32

約数和(自身を含む): 4136073120

約数和(自身を除く): 2322662600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 621031, 1242062, 2484124, 3105155, 4968248, 6210310, 12420620, 24841240, 45335263, 90670526, 181341052, 226676315, 362682104, 453352630, 906705260, 1813410520]

約数ペア:

[(1, 1813410520), (2, 906705260), (4, 453352630), (5, 362682104), (8, 226676315), (10, 181341052), (20, 90670526), (40, 45335263), (73, 24841240), (146, 12420620), (292, 6210310), (365, 4968248), (584, 3105155), (730, 2484124), (1460, 1242062), (2920, 621031)]