801250

素因数分解:

$2^1\times 5^4\times {\mathrm{641}}^1$

素因数の和:663

約数の個数: 20

約数和(自身を含む): 1504206

約数和(自身を除く): 702956

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 641, 1250, 1282, 3205, 6410, 16025, 32050, 80125, 160250, 400625, 801250]

約数ペア:

[(1, 801250), (2, 400625), (5, 160250), (10, 80125), (25, 32050), (50, 16025), (125, 6410), (250, 3205), (625, 1282), (641, 1250)]