713780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 1519560

約数和(自身を除く): 805780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 401, 445, 802, 890, 1604, 1780, 2005, 4010, 8020, 35689, 71378, 142756, 178445, 356890, 713780]

約数ペア:

[(1, 713780), (2, 356890), (4, 178445), (5, 142756), (10, 71378), (20, 35689), (89, 8020), (178, 4010), (356, 2005), (401, 1780), (445, 1604), (802, 890)]