9789440

素因数分解:

$2^{13}\times 5^1\times {\mathrm{239}}^1$

素因数の和:270

約数の個数: 56

約数和(自身を含む): 23591520

約数和(自身を除く): 13802080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 256, 320, 478, 512, 640, 956, 1024, 1195, 1280, 1912, 2048, 2390, 2560, 3824, 4096, 4780, 5120, 7648, 8192, 9560, 10240, 15296, 19120, 20480, 30592, 38240, 40960, 61184, 76480, 122368, 152960, 244736, 305920, 489472, 611840, 978944, 1223680, 1957888, 2447360, 4894720, 9789440]

約数ペア:

[(1, 9789440), (2, 4894720), (4, 2447360), (5, 1957888), (8, 1223680), (10, 978944), (16, 611840), (20, 489472), (32, 305920), (40, 244736), (64, 152960), (80, 122368), (128, 76480), (160, 61184), (239, 40960), (256, 38240), (320, 30592), (478, 20480), (512, 19120), (640, 15296), (956, 10240), (1024, 9560), (1195, 8192), (1280, 7648), (1912, 5120), (2048, 4780), (2390, 4096), (2560, 3824)]