18244820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 42190848

約数和(自身を除く): 23946028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 653, 1270, 1306, 1397, 2540, 2612, 2794, 3265, 5588, 6530, 6985, 7183, 13060, 13970, 14366, 27940, 28732, 35915, 71830, 82931, 143660, 165862, 331724, 414655, 829310, 912241, 1658620, 1824482, 3648964, 4561205, 9122410, 18244820]

約数ペア:

[(1, 18244820), (2, 9122410), (4, 4561205), (5, 3648964), (10, 1824482), (11, 1658620), (20, 912241), (22, 829310), (44, 414655), (55, 331724), (110, 165862), (127, 143660), (220, 82931), (254, 71830), (508, 35915), (635, 28732), (653, 27940), (1270, 14366), (1306, 13970), (1397, 13060), (2540, 7183), (2612, 6985), (2794, 6530), (3265, 5588)]