1898979840

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{82421}}^1$

素因数の和:82450

約数の個数: 120

約数和(自身を含む): 6576781068

約数和(自身を除く): 4677801228

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 82421, 164842, 247263, 329684, 412105, 494526, 659368, 741789, 824210, 989052, 1236315, 1318736, 1483578, 1648420, 1978104, 2472630, 2637472, 2967156, 3296840, 3708945, 3956208, 4945260, 5274944, 5934312, 6593680, 7417890, 7912416, 9890520, 10549888, 11868624, 13187360, 14835780, 15824832, 19781040, 21099776, 23737248, 26374720, 29671560, 31649664, 39562080, 42199552, 47474496, 52749440, 59343120, 63299328, 79124160, 94948992, 105498880, 118686240, 126598656, 158248320, 189897984, 210997760, 237372480, 316496640, 379795968, 474744960, 632993280, 949489920, 1898979840]

約数ペア:

[(1, 1898979840), (2, 949489920), (3, 632993280), (4, 474744960), (5, 379795968), (6, 316496640), (8, 237372480), (9, 210997760), (10, 189897984), (12, 158248320), (15, 126598656), (16, 118686240), (18, 105498880), (20, 94948992), (24, 79124160), (30, 63299328), (32, 59343120), (36, 52749440), (40, 47474496), (45, 42199552), (48, 39562080), (60, 31649664), (64, 29671560), (72, 26374720), (80, 23737248), (90, 21099776), (96, 19781040), (120, 15824832), (128, 14835780), (144, 13187360), (160, 11868624), (180, 10549888), (192, 9890520), (240, 7912416), (256, 7417890), (288, 6593680), (320, 5934312), (360, 5274944), (384, 4945260), (480, 3956208), (512, 3708945), (576, 3296840), (640, 2967156), (720, 2637472), (768, 2472630), (960, 1978104), (1152, 1648420), (1280, 1483578), (1440, 1318736), (1536, 1236315), (1920, 989052), (2304, 824210), (2560, 741789), (2880, 659368), (3840, 494526), (4608, 412105), (5760, 329684), (7680, 247263), (11520, 164842), (23040, 82421)]