281145260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{5347}}^1$

素因数の和:5606

約数の個数: 48

約数和(自身を含む): 646894080

約数和(自身を除く): 365748820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 239, 478, 956, 1195, 2390, 2629, 4780, 5258, 5347, 10516, 10694, 13145, 21388, 26290, 26735, 52580, 53470, 58817, 106940, 117634, 235268, 294085, 588170, 1176340, 1277933, 2555866, 5111732, 6389665, 12779330, 14057263, 25558660, 28114526, 56229052, 70286315, 140572630, 281145260]

約数ペア:

[(1, 281145260), (2, 140572630), (4, 70286315), (5, 56229052), (10, 28114526), (11, 25558660), (20, 14057263), (22, 12779330), (44, 6389665), (55, 5111732), (110, 2555866), (220, 1277933), (239, 1176340), (478, 588170), (956, 294085), (1195, 235268), (2390, 117634), (2629, 106940), (4780, 58817), (5258, 53470), (5347, 52580), (10516, 26735), (10694, 26290), (13145, 21388)]