25166620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{653}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 55375488

約数和(自身を除く): 30208868

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 653, 820, 940, 1306, 1927, 2612, 3265, 3854, 6530, 7708, 9635, 13060, 19270, 26773, 30691, 38540, 53546, 61382, 107092, 122764, 133865, 153455, 267730, 306910, 535460, 613820, 1258331, 2516662, 5033324, 6291655, 12583310, 25166620]

約数ペア:

[(1, 25166620), (2, 12583310), (4, 6291655), (5, 5033324), (10, 2516662), (20, 1258331), (41, 613820), (47, 535460), (82, 306910), (94, 267730), (164, 153455), (188, 133865), (205, 122764), (235, 107092), (410, 61382), (470, 53546), (653, 38540), (820, 30691), (940, 26773), (1306, 19270), (1927, 13060), (2612, 9635), (3265, 7708), (3854, 6530)]