55528960

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 80

約数和(自身を含む): 135036000

約数和(自身を除く): 79507040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 199, 218, 256, 320, 398, 436, 512, 545, 640, 796, 872, 995, 1090, 1280, 1592, 1744, 1990, 2180, 2560, 3184, 3488, 3980, 4360, 6368, 6976, 7960, 8720, 12736, 13952, 15920, 17440, 21691, 25472, 27904, 31840, 34880, 43382, 50944, 55808, 63680, 69760, 86764, 101888, 108455, 127360, 139520, 173528, 216910, 254720, 279040, 347056, 433820, 509440, 694112, 867640, 1388224, 1735280, 2776448, 3470560, 5552896, 6941120, 11105792, 13882240, 27764480, 55528960]

約数ペア:

[(1, 55528960), (2, 27764480), (4, 13882240), (5, 11105792), (8, 6941120), (10, 5552896), (16, 3470560), (20, 2776448), (32, 1735280), (40, 1388224), (64, 867640), (80, 694112), (109, 509440), (128, 433820), (160, 347056), (199, 279040), (218, 254720), (256, 216910), (320, 173528), (398, 139520), (436, 127360), (512, 108455), (545, 101888), (640, 86764), (796, 69760), (872, 63680), (995, 55808), (1090, 50944), (1280, 43382), (1592, 34880), (1744, 31840), (1990, 27904), (2180, 25472), (2560, 21691), (3184, 17440), (3488, 15920), (3980, 13952), (4360, 12736), (6368, 8720), (6976, 7960)]