28661358

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 66355200

約数和(自身を除く): 37693842

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 79, 138, 158, 237, 239, 253, 474, 478, 506, 717, 759, 869, 1434, 1518, 1738, 1817, 2607, 2629, 3634, 5214, 5258, 5451, 5497, 7887, 10902, 10994, 15774, 16491, 18881, 19987, 32982, 37762, 39974, 56643, 59961, 60467, 113286, 119922, 120934, 181401, 207691, 362802, 415382, 434263, 623073, 868526, 1246146, 1302789, 2605578, 4776893, 9553786, 14330679, 28661358]

約数ペア:

[(1, 28661358), (2, 14330679), (3, 9553786), (6, 4776893), (11, 2605578), (22, 1302789), (23, 1246146), (33, 868526), (46, 623073), (66, 434263), (69, 415382), (79, 362802), (138, 207691), (158, 181401), (237, 120934), (239, 119922), (253, 113286), (474, 60467), (478, 59961), (506, 56643), (717, 39974), (759, 37762), (869, 32982), (1434, 19987), (1518, 18881), (1738, 16491), (1817, 15774), (2607, 10994), (2629, 10902), (3634, 7887), (5214, 5497), (5258, 5451)]