25691720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4903}}^1$

素因数の和:5045

約数の個数: 32

約数和(自身を含む): 58259520

約数和(自身を除く): 32567800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 4903, 5240, 9806, 19612, 24515, 39224, 49030, 98060, 196120, 642293, 1284586, 2569172, 3211465, 5138344, 6422930, 12845860, 25691720]

約数ペア:

[(1, 25691720), (2, 12845860), (4, 6422930), (5, 5138344), (8, 3211465), (10, 2569172), (20, 1284586), (40, 642293), (131, 196120), (262, 98060), (524, 49030), (655, 39224), (1048, 24515), (1310, 19612), (2620, 9806), (4903, 5240)]