71329880

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4447}}^1$

素因数の和:4859

約数の個数: 32

約数和(自身を含む): 160928640

約数和(自身を除く): 89598760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 4447, 8020, 8894, 16040, 17788, 22235, 35576, 44470, 88940, 177880, 1783247, 3566494, 7132988, 8916235, 14265976, 17832470, 35664940, 71329880]

約数ペア:

[(1, 71329880), (2, 35664940), (4, 17832470), (5, 14265976), (8, 8916235), (10, 7132988), (20, 3566494), (40, 1783247), (401, 177880), (802, 88940), (1604, 44470), (2005, 35576), (3208, 22235), (4010, 17788), (4447, 16040), (8020, 8894)]