754280

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 1722600

約数和(自身を除く): 968320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 173, 218, 346, 436, 545, 692, 865, 872, 1090, 1384, 1730, 2180, 3460, 4360, 6920, 18857, 37714, 75428, 94285, 150856, 188570, 377140, 754280]

約数ペア:

[(1, 754280), (2, 377140), (4, 188570), (5, 150856), (8, 94285), (10, 75428), (20, 37714), (40, 18857), (109, 6920), (173, 4360), (218, 3460), (346, 2180), (436, 1730), (545, 1384), (692, 1090), (865, 872)]