66876520

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1657}}^1$

素因数の和:2677

約数の個数: 32

約数和(自身を含む): 150712200

約数和(自身を除く): 83835680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 1657, 2018, 3314, 4036, 5045, 6628, 8072, 8285, 10090, 13256, 16570, 20180, 33140, 40360, 66280, 1671913, 3343826, 6687652, 8359565, 13375304, 16719130, 33438260, 66876520]

約数ペア:

[(1, 66876520), (2, 33438260), (4, 16719130), (5, 13375304), (8, 8359565), (10, 6687652), (20, 3343826), (40, 1671913), (1009, 66280), (1657, 40360), (2018, 33140), (3314, 20180), (4036, 16570), (5045, 13256), (6628, 10090), (8072, 8285)]