21987360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{15269}}^1$

素因数の和:15290

約数の個数: 72

約数和(自身を含む): 75036780

約数和(自身を除く): 53049420

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, 15269, 30538, 45807, 61076, 76345, 91614, 122152, 137421, 152690, 183228, 229035, 244304, 274842, 305380, 366456, 458070, 488608, 549684, 610760, 687105, 732912, 916140, 1099368, 1221520, 1374210, 1465824, 1832280, 2198736, 2443040, 2748420, 3664560, 4397472, 5496840, 7329120, 10993680, 21987360]

約数ペア:

[(1, 21987360), (2, 10993680), (3, 7329120), (4, 5496840), (5, 4397472), (6, 3664560), (8, 2748420), (9, 2443040), (10, 2198736), (12, 1832280), (15, 1465824), (16, 1374210), (18, 1221520), (20, 1099368), (24, 916140), (30, 732912), (32, 687105), (36, 610760), (40, 549684), (45, 488608), (48, 458070), (60, 366456), (72, 305380), (80, 274842), (90, 244304), (96, 229035), (120, 183228), (144, 152690), (160, 137421), (180, 122152), (240, 91614), (288, 76345), (360, 61076), (480, 45807), (720, 30538), (1440, 15269)]