39490340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 86752512

約数和(自身を除く): 47262172

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 977, 1954, 2021, 3908, 4042, 4885, 8084, 9770, 10105, 19540, 20210, 40420, 42011, 45919, 84022, 91838, 168044, 183676, 210055, 229595, 420110, 459190, 840220, 918380, 1974517, 3949034, 7898068, 9872585, 19745170, 39490340]

約数ペア:

[(1, 39490340), (2, 19745170), (4, 9872585), (5, 7898068), (10, 3949034), (20, 1974517), (43, 918380), (47, 840220), (86, 459190), (94, 420110), (172, 229595), (188, 210055), (215, 183676), (235, 168044), (430, 91838), (470, 84022), (860, 45919), (940, 42011), (977, 40420), (1954, 20210), (2021, 19540), (3908, 10105), (4042, 9770), (4885, 8084)]