40042000

素因数分解:

$2^4\times 5^3\times {\mathrm{20021}}^1$

素因数の和:20044

約数の個数: 40

約数和(自身を含む): 96826392

約数和(自身を除く): 56784392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 20021, 40042, 80084, 100105, 160168, 200210, 320336, 400420, 500525, 800840, 1001050, 1601680, 2002100, 2502625, 4004200, 5005250, 8008400, 10010500, 20021000, 40042000]

約数ペア:

[(1, 40042000), (2, 20021000), (4, 10010500), (5, 8008400), (8, 5005250), (10, 4004200), (16, 2502625), (20, 2002100), (25, 1601680), (40, 1001050), (50, 800840), (80, 500525), (100, 400420), (125, 320336), (200, 200210), (250, 160168), (400, 100105), (500, 80084), (1000, 40042), (2000, 20021)]