20448995

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 29638656

約数和(自身を除く): 9189661

約数列:

[1, 5, 7, 31, 35, 47, 155, 217, 235, 329, 401, 1085, 1457, 1645, 2005, 2807, 7285, 10199, 12431, 14035, 18847, 50995, 62155, 87017, 94235, 131929, 435085, 584257, 659645, 2921285, 4089799, 20448995]

約数ペア:

[(1, 20448995), (5, 4089799), (7, 2921285), (31, 659645), (35, 584257), (47, 435085), (155, 131929), (217, 94235), (235, 87017), (329, 62155), (401, 50995), (1085, 18847), (1457, 14035), (1645, 12431), (2005, 10199), (2807, 7285)]