20559860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25073}}^1$

素因数の和:25123

約数の個数: 24

約数和(自身を含む): 44230536

約数和(自身を除く): 23670676

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25073, 50146, 100292, 125365, 250730, 501460, 1027993, 2055986, 4111972, 5139965, 10279930, 20559860]

約数ペア:

[(1, 20559860), (2, 10279930), (4, 5139965), (5, 4111972), (10, 2055986), (20, 1027993), (41, 501460), (82, 250730), (164, 125365), (205, 100292), (410, 50146), (820, 25073)]