20037416

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 45895680

約数和(自身を除く): 25858264

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 47, 56, 92, 94, 161, 184, 188, 322, 329, 331, 376, 644, 658, 662, 1081, 1288, 1316, 1324, 2162, 2317, 2632, 2648, 4324, 4634, 7567, 7613, 8648, 9268, 15134, 15226, 15557, 18536, 30268, 30452, 31114, 53291, 60536, 60904, 62228, 106582, 108899, 124456, 213164, 217798, 357811, 426328, 435596, 715622, 871192, 1431244, 2504677, 2862488, 5009354, 10018708, 20037416]

約数ペア:

[(1, 20037416), (2, 10018708), (4, 5009354), (7, 2862488), (8, 2504677), (14, 1431244), (23, 871192), (28, 715622), (46, 435596), (47, 426328), (56, 357811), (92, 217798), (94, 213164), (161, 124456), (184, 108899), (188, 106582), (322, 62228), (329, 60904), (331, 60536), (376, 53291), (644, 31114), (658, 30452), (662, 30268), (1081, 18536), (1288, 15557), (1316, 15226), (1324, 15134), (2162, 9268), (2317, 8648), (2632, 7613), (2648, 7567), (4324, 4634)]