81861208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 181843200

約数和(自身を除く): 99981992

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 163, 286, 326, 439, 572, 652, 878, 1144, 1304, 1756, 1793, 2119, 3512, 3586, 4238, 4829, 5707, 7172, 8476, 9658, 11414, 14344, 16952, 19316, 22828, 23309, 38632, 45656, 46618, 62777, 71557, 93236, 125554, 143114, 186472, 251108, 286228, 502216, 572456, 787127, 930241, 1574254, 1860482, 3148508, 3720964, 6297016, 7441928, 10232651, 20465302, 40930604, 81861208]

約数ペア:

[(1, 81861208), (2, 40930604), (4, 20465302), (8, 10232651), (11, 7441928), (13, 6297016), (22, 3720964), (26, 3148508), (44, 1860482), (52, 1574254), (88, 930241), (104, 787127), (143, 572456), (163, 502216), (286, 286228), (326, 251108), (439, 186472), (572, 143114), (652, 125554), (878, 93236), (1144, 71557), (1304, 62777), (1756, 46618), (1793, 45656), (2119, 38632), (3512, 23309), (3586, 22828), (4238, 19316), (4829, 16952), (5707, 14344), (7172, 11414), (8476, 9658)]