200678980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{112741}}^1$

素因数の和:112839

約数の個数: 24

約数和(自身を含む): 426164760

約数和(自身を除く): 225485780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 112741, 225482, 450964, 563705, 1127410, 2254820, 10033949, 20067898, 40135796, 50169745, 100339490, 200678980]

約数ペア:

[(1, 200678980), (2, 100339490), (4, 50169745), (5, 40135796), (10, 20067898), (20, 10033949), (89, 2254820), (178, 1127410), (356, 563705), (445, 450964), (890, 225482), (1780, 112741)]