18245560

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{929}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 41180400

約数和(自身を除く): 22934840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 929, 982, 1858, 1964, 2455, 3716, 3928, 4645, 4910, 7432, 9290, 9820, 18580, 19640, 37160, 456139, 912278, 1824556, 2280695, 3649112, 4561390, 9122780, 18245560]

約数ペア:

[(1, 18245560), (2, 9122780), (4, 4561390), (5, 3649112), (8, 2280695), (10, 1824556), (20, 912278), (40, 456139), (491, 37160), (929, 19640), (982, 18580), (1858, 9820), (1964, 9290), (2455, 7432), (3716, 4910), (3928, 4645)]