20216240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22973}}^1$

素因数の和:22997

約数の個数: 40

約数和(自身を含む): 51277968

約数和(自身を除く): 31061728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 22973, 45946, 91892, 114865, 183784, 229730, 252703, 367568, 459460, 505406, 918920, 1010812, 1263515, 1837840, 2021624, 2527030, 4043248, 5054060, 10108120, 20216240]

約数ペア:

[(1, 20216240), (2, 10108120), (4, 5054060), (5, 4043248), (8, 2527030), (10, 2021624), (11, 1837840), (16, 1263515), (20, 1010812), (22, 918920), (40, 505406), (44, 459460), (55, 367568), (80, 252703), (88, 229730), (110, 183784), (176, 114865), (220, 91892), (440, 45946), (880, 22973)]