20884600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{863}}^1$

素因数の和:901

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 32549480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 200, 220, 242, 275, 440, 484, 550, 605, 863, 968, 1100, 1210, 1726, 2200, 2420, 3025, 3452, 4315, 4840, 6050, 6904, 8630, 9493, 12100, 17260, 18986, 21575, 24200, 34520, 37972, 43150, 47465, 75944, 86300, 94930, 104423, 172600, 189860, 208846, 237325, 379720, 417692, 474650, 522115, 835384, 949300, 1044230, 1898600, 2088460, 2610575, 4176920, 5221150, 10442300, 20884600]

約数ペア:

[(1, 20884600), (2, 10442300), (4, 5221150), (5, 4176920), (8, 2610575), (10, 2088460), (11, 1898600), (20, 1044230), (22, 949300), (25, 835384), (40, 522115), (44, 474650), (50, 417692), (55, 379720), (88, 237325), (100, 208846), (110, 189860), (121, 172600), (200, 104423), (220, 94930), (242, 86300), (275, 75944), (440, 47465), (484, 43150), (550, 37972), (605, 34520), (863, 24200), (968, 21575), (1100, 18986), (1210, 17260), (1726, 12100), (2200, 9493), (2420, 8630), (3025, 6904), (3452, 6050), (4315, 4840)]