2021067860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{236659}}^1$

素因数の和:236736

約数の個数: 48

約数和(自身を含む): 4930101120

約数和(自身を除く): 2909033260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 236659, 473318, 946636, 1183295, 1656613, 2366590, 3313226, 4733180, 6626452, 8283065, 14436199, 16566130, 28872398, 33132260, 57744796, 72180995, 101053393, 144361990, 202106786, 288723980, 404213572, 505266965, 1010533930, 2021067860]

約数ペア:

[(1, 2021067860), (2, 1010533930), (4, 505266965), (5, 404213572), (7, 288723980), (10, 202106786), (14, 144361990), (20, 101053393), (28, 72180995), (35, 57744796), (61, 33132260), (70, 28872398), (122, 16566130), (140, 14436199), (244, 8283065), (305, 6626452), (427, 4733180), (610, 3313226), (854, 2366590), (1220, 1656613), (1708, 1183295), (2135, 946636), (4270, 473318), (8540, 236659)]