51810040

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{7487}}^1$

素因数の和:7671

約数の個数: 32

約数和(自身を含む): 117262080

約数和(自身を除く): 65452040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 7487, 14974, 29948, 37435, 59896, 74870, 149740, 299480, 1295251, 2590502, 5181004, 6476255, 10362008, 12952510, 25905020, 51810040]

約数ペア:

[(1, 51810040), (2, 25905020), (4, 12952510), (5, 10362008), (8, 6476255), (10, 5181004), (20, 2590502), (40, 1295251), (173, 299480), (346, 149740), (692, 74870), (865, 59896), (1384, 37435), (1730, 29948), (3460, 14974), (6920, 7487)]