989754880

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3547}}^1$

素因数の和:3679

約数の個数: 80

約数和(自身を含む): 2395538640

約数和(自身を除く): 1405783760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 872, 1090, 1280, 1744, 2180, 2560, 3488, 3547, 4360, 6976, 7094, 8720, 13952, 14188, 17440, 17735, 27904, 28376, 34880, 35470, 55808, 56752, 69760, 70940, 113504, 139520, 141880, 227008, 279040, 283760, 386623, 454016, 567520, 773246, 908032, 1135040, 1546492, 1816064, 1933115, 2270080, 3092984, 3866230, 4540160, 6185968, 7732460, 9080320, 12371936, 15464920, 24743872, 30929840, 49487744, 61859680, 98975488, 123719360, 197950976, 247438720, 494877440, 989754880]

約数ペア:

[(1, 989754880), (2, 494877440), (4, 247438720), (5, 197950976), (8, 123719360), (10, 98975488), (16, 61859680), (20, 49487744), (32, 30929840), (40, 24743872), (64, 15464920), (80, 12371936), (109, 9080320), (128, 7732460), (160, 6185968), (218, 4540160), (256, 3866230), (320, 3092984), (436, 2270080), (512, 1933115), (545, 1816064), (640, 1546492), (872, 1135040), (1090, 908032), (1280, 773246), (1744, 567520), (2180, 454016), (2560, 386623), (3488, 283760), (3547, 279040), (4360, 227008), (6976, 141880), (7094, 139520), (8720, 113504), (13952, 70940), (14188, 69760), (17440, 56752), (17735, 55808), (27904, 35470), (28376, 34880)]