615020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 1548288

約数和(自身を除く): 933268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 191, 230, 322, 382, 460, 644, 764, 805, 955, 1337, 1610, 1910, 2674, 3220, 3820, 4393, 5348, 6685, 8786, 13370, 17572, 21965, 26740, 30751, 43930, 61502, 87860, 123004, 153755, 307510, 615020]

約数ペア:

[(1, 615020), (2, 307510), (4, 153755), (5, 123004), (7, 87860), (10, 61502), (14, 43930), (20, 30751), (23, 26740), (28, 21965), (35, 17572), (46, 13370), (70, 8786), (92, 6685), (115, 5348), (140, 4393), (161, 3820), (191, 3220), (230, 2674), (322, 1910), (382, 1610), (460, 1337), (644, 955), (764, 805)]