12821000

素因数分解:

$2^3\times 5^3\times {\mathrm{12821}}^1$

素因数の和:12842

約数の個数: 32

約数和(自身を含む): 30003480

約数和(自身を除く): 17182480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 12821, 25642, 51284, 64105, 102568, 128210, 256420, 320525, 512840, 641050, 1282100, 1602625, 2564200, 3205250, 6410500, 12821000]

約数ペア:

[(1, 12821000), (2, 6410500), (4, 3205250), (5, 2564200), (8, 1602625), (10, 1282100), (20, 641050), (25, 512840), (40, 320525), (50, 256420), (100, 128210), (125, 102568), (200, 64105), (250, 51284), (500, 25642), (1000, 12821)]