25573820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 55617408

約数和(自身を除く): 30043588

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 131, 172, 215, 227, 262, 430, 454, 524, 655, 860, 908, 1135, 1310, 2270, 2620, 4540, 5633, 9761, 11266, 19522, 22532, 28165, 29737, 39044, 48805, 56330, 59474, 97610, 112660, 118948, 148685, 195220, 297370, 594740, 1278691, 2557382, 5114764, 6393455, 12786910, 25573820]

約数ペア:

[(1, 25573820), (2, 12786910), (4, 6393455), (5, 5114764), (10, 2557382), (20, 1278691), (43, 594740), (86, 297370), (131, 195220), (172, 148685), (215, 118948), (227, 112660), (262, 97610), (430, 59474), (454, 56330), (524, 48805), (655, 39044), (860, 29737), (908, 28165), (1135, 22532), (1310, 19522), (2270, 11266), (2620, 9761), (4540, 5633)]