20020312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1181}}^1$

素因数の和:1363

約数の個数: 32

約数和(自身を含む): 40708080

約数和(自身を除く): 20687768

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 163, 326, 652, 1181, 1304, 2119, 2362, 4238, 4724, 8476, 9448, 15353, 16952, 30706, 61412, 122824, 192503, 385006, 770012, 1540024, 2502539, 5005078, 10010156, 20020312]

約数ペア:

[(1, 20020312), (2, 10010156), (4, 5005078), (8, 2502539), (13, 1540024), (26, 770012), (52, 385006), (104, 192503), (163, 122824), (326, 61412), (652, 30706), (1181, 16952), (1304, 15353), (2119, 9448), (2362, 8476), (4238, 4724)]