20217170

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 37814256

約数和(自身を除く): 17597086

約数列:

[1, 2, 5, 10, 37, 74, 101, 185, 202, 370, 505, 541, 1010, 1082, 2705, 3737, 5410, 7474, 18685, 20017, 37370, 40034, 54641, 100085, 109282, 200170, 273205, 546410, 2021717, 4043434, 10108585, 20217170]

約数ペア:

[(1, 20217170), (2, 10108585), (5, 4043434), (10, 2021717), (37, 546410), (74, 273205), (101, 200170), (185, 109282), (202, 100085), (370, 54641), (505, 40034), (541, 37370), (1010, 20017), (1082, 18685), (2705, 7474), (3737, 5410)]