1749271240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{401209}}^1$

素因数の和:401329

約数の個数: 32

約数和(自身を含む): 3971979000

約数和(自身を除く): 2222707760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 401209, 802418, 1604836, 2006045, 3209672, 4012090, 8024180, 16048360, 43731781, 87463562, 174927124, 218658905, 349854248, 437317810, 874635620, 1749271240]

約数ペア:

[(1, 1749271240), (2, 874635620), (4, 437317810), (5, 349854248), (8, 218658905), (10, 174927124), (20, 87463562), (40, 43731781), (109, 16048360), (218, 8024180), (436, 4012090), (545, 3209672), (872, 2006045), (1090, 1604836), (2180, 802418), (4360, 401209)]