39740840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7823}}^1$

素因数の和:7961

約数の個数: 32

約数和(自身を含む): 90132480

約数和(自身を除く): 50391640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 7823, 15646, 31292, 39115, 62584, 78230, 156460, 312920, 993521, 1987042, 3974084, 4967605, 7948168, 9935210, 19870420, 39740840]

約数ペア:

[(1, 39740840), (2, 19870420), (4, 9935210), (5, 7948168), (8, 4967605), (10, 3974084), (20, 1987042), (40, 993521), (127, 312920), (254, 156460), (508, 78230), (635, 62584), (1016, 39115), (1270, 31292), (2540, 15646), (5080, 7823)]