81208854

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{439}}^1$

素因数の和:729

約数の個数: 48

約数和(自身を含む): 181209600

約数和(自身を除く): 100000746

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 239, 258, 387, 439, 478, 717, 774, 878, 1317, 1434, 2151, 2634, 3951, 4302, 7902, 10277, 18877, 20554, 30831, 37754, 56631, 61662, 92493, 104921, 113262, 169893, 184986, 209842, 314763, 339786, 629526, 944289, 1888578, 4511603, 9023206, 13534809, 27069618, 40604427, 81208854]

約数ペア:

[(1, 81208854), (2, 40604427), (3, 27069618), (6, 13534809), (9, 9023206), (18, 4511603), (43, 1888578), (86, 944289), (129, 629526), (239, 339786), (258, 314763), (387, 209842), (439, 184986), (478, 169893), (717, 113262), (774, 104921), (878, 92493), (1317, 61662), (1434, 56631), (2151, 37754), (2634, 30831), (3951, 20554), (4302, 18877), (7902, 10277)]