20107760

素因数分解:

$2^4\times 5^1\times {\mathrm{251347}}^1$

素因数の和:251360

約数の個数: 20

約数和(自身を含む): 46750728

約数和(自身を除く): 26642968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251347, 502694, 1005388, 1256735, 2010776, 2513470, 4021552, 5026940, 10053880, 20107760]

約数ペア:

[(1, 20107760), (2, 10053880), (4, 5026940), (5, 4021552), (8, 2513470), (10, 2010776), (16, 1256735), (20, 1005388), (40, 502694), (80, 251347)]