201139720

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{11351}}^1$

素因数の和:11805

約数の個数: 32

約数和(自身を含む): 453625920

約数和(自身を除く): 252486200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1772, 2215, 3544, 4430, 8860, 11351, 17720, 22702, 45404, 56755, 90808, 113510, 227020, 454040, 5028493, 10056986, 20113972, 25142465, 40227944, 50284930, 100569860, 201139720]

約数ペア:

[(1, 201139720), (2, 100569860), (4, 50284930), (5, 40227944), (8, 25142465), (10, 20113972), (20, 10056986), (40, 5028493), (443, 454040), (886, 227020), (1772, 113510), (2215, 90808), (3544, 56755), (4430, 45404), (8860, 22702), (11351, 17720)]