12868000

素因数分解:

$2^5\times 5^3\times {\mathrm{3217}}^1$

素因数の和:3242

約数の個数: 48

約数和(自身を含む): 31626504

約数和(自身を除く): 18758504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 3217, 4000, 6434, 12868, 16085, 25736, 32170, 51472, 64340, 80425, 102944, 128680, 160850, 257360, 321700, 402125, 514720, 643400, 804250, 1286800, 1608500, 2573600, 3217000, 6434000, 12868000]

約数ペア:

[(1, 12868000), (2, 6434000), (4, 3217000), (5, 2573600), (8, 1608500), (10, 1286800), (16, 804250), (20, 643400), (25, 514720), (32, 402125), (40, 321700), (50, 257360), (80, 160850), (100, 128680), (125, 102944), (160, 80425), (200, 64340), (250, 51472), (400, 32170), (500, 25736), (800, 16085), (1000, 12868), (2000, 6434), (3217, 4000)]