42557480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{21713}}^1$

素因数の和:21738

約数の個数: 48

約数和(自身を含む): 111392820

約数和(自身を除く): 68835340

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 21713, 43426, 86852, 108565, 151991, 173704, 217130, 303982, 434260, 607964, 759955, 868520, 1063937, 1215928, 1519910, 2127874, 3039820, 4255748, 5319685, 6079640, 8511496, 10639370, 21278740, 42557480]

約数ペア:

[(1, 42557480), (2, 21278740), (4, 10639370), (5, 8511496), (7, 6079640), (8, 5319685), (10, 4255748), (14, 3039820), (20, 2127874), (28, 1519910), (35, 1215928), (40, 1063937), (49, 868520), (56, 759955), (70, 607964), (98, 434260), (140, 303982), (196, 217130), (245, 173704), (280, 151991), (392, 108565), (490, 86852), (980, 43426), (1960, 21713)]