25209260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{433}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 55121472

約数和(自身を除く): 29912212

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 433, 710, 820, 866, 1420, 1732, 2165, 2911, 4330, 5822, 8660, 11644, 14555, 17753, 29110, 30743, 35506, 58220, 61486, 71012, 88765, 122972, 153715, 177530, 307430, 355060, 614860, 1260463, 2520926, 5041852, 6302315, 12604630, 25209260]

約数ペア:

[(1, 25209260), (2, 12604630), (4, 6302315), (5, 5041852), (10, 2520926), (20, 1260463), (41, 614860), (71, 355060), (82, 307430), (142, 177530), (164, 153715), (205, 122972), (284, 88765), (355, 71012), (410, 61486), (433, 58220), (710, 35506), (820, 30743), (866, 29110), (1420, 17753), (1732, 14555), (2165, 11644), (2911, 8660), (4330, 5822)]