204415360

素因数分解:

$2^7\times 5^1\times {\mathrm{319399}}^1$

素因数の和:319418

約数の個数: 32

約数和(自身を含む): 488682000

約数和(自身を除く): 284266640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 319399, 638798, 1277596, 1596995, 2555192, 3193990, 5110384, 6387980, 10220768, 12775960, 20441536, 25551920, 40883072, 51103840, 102207680, 204415360]

約数ペア:

[(1, 204415360), (2, 102207680), (4, 51103840), (5, 40883072), (8, 25551920), (10, 20441536), (16, 12775960), (20, 10220768), (32, 6387980), (40, 5110384), (64, 3193990), (80, 2555192), (128, 1596995), (160, 1277596), (320, 638798), (640, 319399)]