20247976

素因数分解:

$2^3\times 7^3\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 45504000

約数和(自身を除く): 25256024

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 49, 56, 94, 98, 157, 188, 196, 314, 329, 343, 376, 392, 628, 658, 686, 1099, 1256, 1316, 1372, 2198, 2303, 2632, 2744, 4396, 4606, 7379, 7693, 8792, 9212, 14758, 15386, 16121, 18424, 29516, 30772, 32242, 51653, 53851, 59032, 61544, 64484, 103306, 107702, 128968, 206612, 215404, 361571, 413224, 430808, 723142, 1446284, 2530997, 2892568, 5061994, 10123988, 20247976]

約数ペア:

[(1, 20247976), (2, 10123988), (4, 5061994), (7, 2892568), (8, 2530997), (14, 1446284), (28, 723142), (47, 430808), (49, 413224), (56, 361571), (94, 215404), (98, 206612), (157, 128968), (188, 107702), (196, 103306), (314, 64484), (329, 61544), (343, 59032), (376, 53851), (392, 51653), (628, 32242), (658, 30772), (686, 29516), (1099, 18424), (1256, 16121), (1316, 15386), (1372, 14758), (2198, 9212), (2303, 8792), (2632, 7693), (2744, 7379), (4396, 4606)]