81542461

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^2$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 115436160

約数和(自身を除く): 33893699

約数列:

[1, 7, 11, 13, 29, 53, 77, 91, 143, 203, 319, 371, 377, 583, 689, 1001, 1537, 2233, 2639, 2809, 4081, 4147, 4823, 7579, 10759, 16907, 19663, 19981, 29029, 30899, 36517, 53053, 81461, 118349, 139867, 216293, 219791, 255619, 401687, 570227, 896071, 1058993, 1538537, 2811809, 6272497, 7412951, 11648923, 81542461]

約数ペア:

[(1, 81542461), (7, 11648923), (11, 7412951), (13, 6272497), (29, 2811809), (53, 1538537), (77, 1058993), (91, 896071), (143, 570227), (203, 401687), (319, 255619), (371, 219791), (377, 216293), (583, 139867), (689, 118349), (1001, 81461), (1537, 53053), (2233, 36517), (2639, 30899), (2809, 29029), (4081, 19981), (4147, 19663), (4823, 16907), (7579, 10759)]