81912154

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 147744000

約数和(自身を除く): 65831846

約数列:

[1, 2, 17, 19, 23, 34, 37, 38, 46, 74, 149, 298, 323, 391, 437, 629, 646, 703, 782, 851, 874, 1258, 1406, 1702, 2533, 2831, 3427, 5066, 5513, 5662, 6854, 7429, 11026, 11951, 14467, 14858, 16169, 23902, 28934, 32338, 48127, 58259, 65113, 93721, 96254, 104747, 116518, 126799, 130226, 187442, 209494, 253598, 274873, 549746, 1106921, 1780699, 2155583, 2213842, 2409181, 3561398, 4311166, 4818362, 40956077, 81912154]

約数ペア:

[(1, 81912154), (2, 40956077), (17, 4818362), (19, 4311166), (23, 3561398), (34, 2409181), (37, 2213842), (38, 2155583), (46, 1780699), (74, 1106921), (149, 549746), (298, 274873), (323, 253598), (391, 209494), (437, 187442), (629, 130226), (646, 126799), (703, 116518), (782, 104747), (851, 96254), (874, 93721), (1258, 65113), (1406, 58259), (1702, 48127), (2533, 32338), (2831, 28934), (3427, 23902), (5066, 16169), (5513, 14858), (5662, 14467), (6854, 11951), (7429, 11026)]