215216380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{262459}}^1$

素因数の和:262509

約数の個数: 24

約数和(自身を含む): 462979440

約数和(自身を除く): 247763060

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 262459, 524918, 1049836, 1312295, 2624590, 5249180, 10760819, 21521638, 43043276, 53804095, 107608190, 215216380]

約数ペア:

[(1, 215216380), (2, 107608190), (4, 53804095), (5, 43043276), (10, 21521638), (20, 10760819), (41, 5249180), (82, 2624590), (164, 1312295), (205, 1049836), (410, 524918), (820, 262459)]