100480720

素因数分解:

$2^4\times 5^1\times {\mathrm{1256009}}^1$

素因数の和:1256022

約数の個数: 20

約数和(自身を含む): 233617860

約数和(自身を除く): 133137140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1256009, 2512018, 5024036, 6280045, 10048072, 12560090, 20096144, 25120180, 50240360, 100480720]

約数ペア:

[(1, 100480720), (2, 50240360), (4, 25120180), (5, 20096144), (8, 12560090), (10, 10048072), (16, 6280045), (20, 5024036), (40, 2512018), (80, 1256009)]