7129780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 17289216

約数和(自身を除く): 10159436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 401, 508, 635, 802, 889, 1270, 1604, 1778, 2005, 2540, 2807, 3556, 4010, 4445, 5614, 8020, 8890, 11228, 14035, 17780, 28070, 50927, 56140, 101854, 203708, 254635, 356489, 509270, 712978, 1018540, 1425956, 1782445, 3564890, 7129780]

約数ペア:

[(1, 7129780), (2, 3564890), (4, 1782445), (5, 1425956), (7, 1018540), (10, 712978), (14, 509270), (20, 356489), (28, 254635), (35, 203708), (70, 101854), (127, 56140), (140, 50927), (254, 28070), (401, 17780), (508, 14035), (635, 11228), (802, 8890), (889, 8020), (1270, 5614), (1604, 4445), (1778, 4010), (2005, 3556), (2540, 2807)]