17916680

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1117}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 40449240

約数和(自身を除く): 22532560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1117, 1604, 2005, 2234, 3208, 4010, 4468, 5585, 8020, 8936, 11170, 16040, 22340, 44680, 447917, 895834, 1791668, 2239585, 3583336, 4479170, 8958340, 17916680]

約数ペア:

[(1, 17916680), (2, 8958340), (4, 4479170), (5, 3583336), (8, 2239585), (10, 1791668), (20, 895834), (40, 447917), (401, 44680), (802, 22340), (1117, 16040), (1604, 11170), (2005, 8936), (2234, 8020), (3208, 5585), (4010, 4468)]