1223680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{239}}^1$

素因数の和:264

約数の個数: 44

約数和(自身を含む): 2947680

約数和(自身を除く): 1724000

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, 2390, 2560, 3824, 4780, 5120, 7648, 9560, 15296, 19120, 30592, 38240, 61184, 76480, 122368, 152960, 244736, 305920, 611840, 1223680]

約数ペア:

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