78447080

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3853}}^1$

素因数の和:4373

約数の個数: 32

約数和(自身を含む): 176898600

約数和(自身を除く): 98451520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 3853, 4072, 5090, 7706, 10180, 15412, 19265, 20360, 30824, 38530, 77060, 154120, 1961177, 3922354, 7844708, 9805885, 15689416, 19611770, 39223540, 78447080]

約数ペア:

[(1, 78447080), (2, 39223540), (4, 19611770), (5, 15689416), (8, 9805885), (10, 7844708), (20, 3922354), (40, 1961177), (509, 154120), (1018, 77060), (2036, 38530), (2545, 30824), (3853, 20360), (4072, 19265), (5090, 15412), (7706, 10180)]