740440

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 1691280

約数和(自身を除く): 950840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 173, 214, 346, 428, 535, 692, 856, 865, 1070, 1384, 1730, 2140, 3460, 4280, 6920, 18511, 37022, 74044, 92555, 148088, 185110, 370220, 740440]

約数ペア:

[(1, 740440), (2, 370220), (4, 185110), (5, 148088), (8, 92555), (10, 74044), (20, 37022), (40, 18511), (107, 6920), (173, 4280), (214, 3460), (346, 2140), (428, 1730), (535, 1384), (692, 1070), (856, 865)]