81260060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3697}}^1$

素因数の和:3870

約数の個数: 48

約数和(自身を含む): 196319424

約数和(自身を除く): 115059364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 3697, 4396, 5495, 7394, 10990, 14788, 18485, 21980, 25879, 36970, 51758, 73940, 103516, 129395, 258790, 517580, 580429, 1160858, 2321716, 2902145, 4063003, 5804290, 8126006, 11608580, 16252012, 20315015, 40630030, 81260060]

約数ペア:

[(1, 81260060), (2, 40630030), (4, 20315015), (5, 16252012), (7, 11608580), (10, 8126006), (14, 5804290), (20, 4063003), (28, 2902145), (35, 2321716), (70, 1160858), (140, 580429), (157, 517580), (314, 258790), (628, 129395), (785, 103516), (1099, 73940), (1570, 51758), (2198, 36970), (3140, 25879), (3697, 21980), (4396, 18485), (5495, 14788), (7394, 10990)]