21636513520

素因数分解:

$2^4\times 5^1\times {\mathrm{270456419}}^1$

素因数の和:270456432

約数の個数: 20

約数和(自身を含む): 50304894120

約数和(自身を除く): 28668380600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270456419, 540912838, 1081825676, 1352282095, 2163651352, 2704564190, 4327302704, 5409128380, 10818256760, 21636513520]

約数ペア:

[(1, 21636513520), (2, 10818256760), (4, 5409128380), (5, 4327302704), (8, 2704564190), (10, 2163651352), (16, 1352282095), (20, 1081825676), (40, 540912838), (80, 270456419)]