203420418

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{397}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 440156160

約数和(自身を除く): 236735742

約数列:

[1, 2, 3, 6, 23, 46, 47, 69, 79, 94, 138, 141, 158, 237, 282, 397, 474, 794, 1081, 1191, 1817, 2162, 2382, 3243, 3634, 3713, 5451, 6486, 7426, 9131, 10902, 11139, 18262, 18659, 22278, 27393, 31363, 37318, 54786, 55977, 62726, 85399, 94089, 111954, 170798, 188178, 256197, 429157, 512394, 721349, 858314, 1287471, 1442698, 1474061, 2164047, 2574942, 2948122, 4328094, 4422183, 8844366, 33903403, 67806806, 101710209, 203420418]

約数ペア:

[(1, 203420418), (2, 101710209), (3, 67806806), (6, 33903403), (23, 8844366), (46, 4422183), (47, 4328094), (69, 2948122), (79, 2574942), (94, 2164047), (138, 1474061), (141, 1442698), (158, 1287471), (237, 858314), (282, 721349), (397, 512394), (474, 429157), (794, 256197), (1081, 188178), (1191, 170798), (1817, 111954), (2162, 94089), (2382, 85399), (3243, 62726), (3634, 55977), (3713, 54786), (5451, 37318), (6486, 31363), (7426, 27393), (9131, 22278), (10902, 18659), (11139, 18262)]