27764480

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 67452000

約数和(自身を除く): 39687520

約数列:

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

約数ペア:

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