31428440

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1697}}^1$

素因数の和:2171

約数の個数: 32

約数和(自身を含む): 70908480

約数和(自身を除く): 39480040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1697, 1852, 2315, 3394, 3704, 4630, 6788, 8485, 9260, 13576, 16970, 18520, 33940, 67880, 785711, 1571422, 3142844, 3928555, 6285688, 7857110, 15714220, 31428440]

約数ペア:

[(1, 31428440), (2, 15714220), (4, 7857110), (5, 6285688), (8, 3928555), (10, 3142844), (20, 1571422), (40, 785711), (463, 67880), (926, 33940), (1697, 18520), (1852, 16970), (2315, 13576), (3394, 9260), (3704, 8485), (4630, 6788)]