20145011978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{78893}}^1$

素因数の和:78999

約数の個数: 64

約数和(自身を含む): 39444475392

約数和(自身を除く): 19299463414

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 61, 91, 122, 161, 182, 299, 322, 427, 598, 793, 854, 1403, 1586, 2093, 2806, 4186, 5551, 9821, 11102, 18239, 19642, 36478, 78893, 127673, 157786, 255346, 552251, 1025609, 1104502, 1814539, 2051218, 3629078, 4812473, 7179263, 9624946, 12701773, 14358526, 23589007, 25403546, 33687311, 47178014, 62562149, 67374622, 110686879, 125124298, 165123049, 221373758, 330246098, 437935043, 774808153, 875870086, 1438929427, 1549616306, 2877858854, 10072505989, 20145011978]

約数ペア:

[(1, 20145011978), (2, 10072505989), (7, 2877858854), (13, 1549616306), (14, 1438929427), (23, 875870086), (26, 774808153), (46, 437935043), (61, 330246098), (91, 221373758), (122, 165123049), (161, 125124298), (182, 110686879), (299, 67374622), (322, 62562149), (427, 47178014), (598, 33687311), (793, 25403546), (854, 23589007), (1403, 14358526), (1586, 12701773), (2093, 9624946), (2806, 7179263), (4186, 4812473), (5551, 3629078), (9821, 2051218), (11102, 1814539), (18239, 1104502), (19642, 1025609), (36478, 552251), (78893, 255346), (127673, 157786)]