209985120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{145823}}^1$

素因数の和:145844

約数の個数: 72

約数和(自身を含む): 716579136

約数和(自身を除く): 506594016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 145823, 291646, 437469, 583292, 729115, 874938, 1166584, 1312407, 1458230, 1749876, 2187345, 2333168, 2624814, 2916460, 3499752, 4374690, 4666336, 5249628, 5832920, 6562035, 6999504, 8749380, 10499256, 11665840, 13124070, 13999008, 17498760, 20998512, 23331680, 26248140, 34997520, 41997024, 52496280, 69995040, 104992560, 209985120]

約数ペア:

[(1, 209985120), (2, 104992560), (3, 69995040), (4, 52496280), (5, 41997024), (6, 34997520), (8, 26248140), (9, 23331680), (10, 20998512), (12, 17498760), (15, 13999008), (16, 13124070), (18, 11665840), (20, 10499256), (24, 8749380), (30, 6999504), (32, 6562035), (36, 5832920), (40, 5249628), (45, 4666336), (48, 4374690), (60, 3499752), (72, 2916460), (80, 2624814), (90, 2333168), (96, 2187345), (120, 1749876), (144, 1458230), (160, 1312407), (180, 1166584), (240, 874938), (288, 729115), (360, 583292), (480, 437469), (720, 291646), (1440, 145823)]