25164280

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{997}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 56766240

約数和(自身を除く): 31601960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 997, 1262, 1994, 2524, 3155, 3988, 4985, 5048, 6310, 7976, 9970, 12620, 19940, 25240, 39880, 629107, 1258214, 2516428, 3145535, 5032856, 6291070, 12582140, 25164280]

約数ペア:

[(1, 25164280), (2, 12582140), (4, 6291070), (5, 5032856), (8, 3145535), (10, 2516428), (20, 1258214), (40, 629107), (631, 39880), (997, 25240), (1262, 19940), (1994, 12620), (2524, 9970), (3155, 7976), (3988, 6310), (4985, 5048)]