39121520

素因数分解:

$2^4\times 5^1\times {\mathrm{489019}}^1$

素因数の和:489032

約数の個数: 20

約数和(自身を含む): 90957720

約数和(自身を除く): 51836200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 489019, 978038, 1956076, 2445095, 3912152, 4890190, 7824304, 9780380, 19560760, 39121520]

約数ペア:

[(1, 39121520), (2, 19560760), (4, 9780380), (5, 7824304), (8, 4890190), (10, 3912152), (16, 2445095), (20, 1956076), (40, 978038), (80, 489019)]