401000

素因数分解:

$2^3\times 5^3\times {\mathrm{401}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 940680

約数和(自身を除く): 539680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 401, 500, 802, 1000, 1604, 2005, 3208, 4010, 8020, 10025, 16040, 20050, 40100, 50125, 80200, 100250, 200500, 401000]

約数ペア:

[(1, 401000), (2, 200500), (4, 100250), (5, 80200), (8, 50125), (10, 40100), (20, 20050), (25, 16040), (40, 10025), (50, 8020), (100, 4010), (125, 3208), (200, 2005), (250, 1604), (401, 1000), (500, 802)]