1397840

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 40

約数和(自身を含む): 3301128

約数和(自身を除く): 1903288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 173, 202, 346, 404, 505, 692, 808, 865, 1010, 1384, 1616, 1730, 2020, 2768, 3460, 4040, 6920, 8080, 13840, 17473, 34946, 69892, 87365, 139784, 174730, 279568, 349460, 698920, 1397840]

約数ペア:

[(1, 1397840), (2, 698920), (4, 349460), (5, 279568), (8, 174730), (10, 139784), (16, 87365), (20, 69892), (40, 34946), (80, 17473), (101, 13840), (173, 8080), (202, 6920), (346, 4040), (404, 3460), (505, 2768), (692, 2020), (808, 1730), (865, 1616), (1010, 1384)]