393901880

素因数分解:

$2^3\times 5^1\times {\mathrm{463}}^1\times {\mathrm{21269}}^1$

素因数の和:21743

約数の個数: 32

約数和(自身を含む): 888235200

約数和(自身を除く): 494333320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 463, 926, 1852, 2315, 3704, 4630, 9260, 18520, 21269, 42538, 85076, 106345, 170152, 212690, 425380, 850760, 9847547, 19695094, 39390188, 49237735, 78780376, 98475470, 196950940, 393901880]

約数ペア:

[(1, 393901880), (2, 196950940), (4, 98475470), (5, 78780376), (8, 49237735), (10, 39390188), (20, 19695094), (40, 9847547), (463, 850760), (926, 425380), (1852, 212690), (2315, 170152), (3704, 106345), (4630, 85076), (9260, 42538), (18520, 21269)]