28705680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{39869}}^1$

素因数の和:39888

約数の個数: 60

約数和(自身を含む): 96405660

約数和(自身を除く): 67699980

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 39869, 79738, 119607, 159476, 199345, 239214, 318952, 358821, 398690, 478428, 598035, 637904, 717642, 797380, 956856, 1196070, 1435284, 1594760, 1794105, 1913712, 2392140, 2870568, 3189520, 3588210, 4784280, 5741136, 7176420, 9568560, 14352840, 28705680]

約数ペア:

[(1, 28705680), (2, 14352840), (3, 9568560), (4, 7176420), (5, 5741136), (6, 4784280), (8, 3588210), (9, 3189520), (10, 2870568), (12, 2392140), (15, 1913712), (16, 1794105), (18, 1594760), (20, 1435284), (24, 1196070), (30, 956856), (36, 797380), (40, 717642), (45, 637904), (48, 598035), (60, 478428), (72, 398690), (80, 358821), (90, 318952), (120, 239214), (144, 199345), (180, 159476), (240, 119607), (360, 79738), (720, 39869)]