25265560

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1297}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 57008160

約数和(自身を除く): 31742600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1297, 1948, 2435, 2594, 3896, 4870, 5188, 6485, 9740, 10376, 12970, 19480, 25940, 51880, 631639, 1263278, 2526556, 3158195, 5053112, 6316390, 12632780, 25265560]

約数ペア:

[(1, 25265560), (2, 12632780), (4, 6316390), (5, 5053112), (8, 3158195), (10, 2526556), (20, 1263278), (40, 631639), (487, 51880), (974, 25940), (1297, 19480), (1948, 12970), (2435, 10376), (2594, 9740), (3896, 6485), (4870, 5188)]