180081860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{26251}}^1$

素因数の和:26281

約数の個数: 48

約数和(自身を含む): 441033600

約数和(自身を除く): 260951740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 26251, 52502, 105004, 131255, 183757, 262510, 367514, 525020, 735028, 918785, 1286299, 1837570, 2572598, 3675140, 5145196, 6431495, 9004093, 12862990, 18008186, 25725980, 36016372, 45020465, 90040930, 180081860]

約数ペア:

[(1, 180081860), (2, 90040930), (4, 45020465), (5, 36016372), (7, 25725980), (10, 18008186), (14, 12862990), (20, 9004093), (28, 6431495), (35, 5145196), (49, 3675140), (70, 2572598), (98, 1837570), (140, 1286299), (196, 918785), (245, 735028), (343, 525020), (490, 367514), (686, 262510), (980, 183757), (1372, 131255), (1715, 105004), (3430, 52502), (6860, 26251)]