81609860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5107}}^1$

素因数の和:5180

約数の個数: 48

約数和(自身を含む): 185359104

約数和(自身を除く): 103749244

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 68, 85, 94, 170, 188, 235, 340, 470, 799, 940, 1598, 3196, 3995, 5107, 7990, 10214, 15980, 20428, 25535, 51070, 86819, 102140, 173638, 240029, 347276, 434095, 480058, 868190, 960116, 1200145, 1736380, 2400290, 4080493, 4800580, 8160986, 16321972, 20402465, 40804930, 81609860]

約数ペア:

[(1, 81609860), (2, 40804930), (4, 20402465), (5, 16321972), (10, 8160986), (17, 4800580), (20, 4080493), (34, 2400290), (47, 1736380), (68, 1200145), (85, 960116), (94, 868190), (170, 480058), (188, 434095), (235, 347276), (340, 240029), (470, 173638), (799, 102140), (940, 86819), (1598, 51070), (3196, 25535), (3995, 20428), (5107, 15980), (7990, 10214)]