290486586

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:655

約数の個数: 64

約数和(自身を含む): 644611968

約数和(自身を除く): 354125382

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 257, 258, 337, 514, 559, 674, 771, 1011, 1118, 1542, 1677, 2022, 3341, 3354, 4381, 6682, 8762, 10023, 11051, 13143, 14491, 20046, 22102, 26286, 28982, 33153, 43473, 66306, 86609, 86946, 143663, 173218, 188383, 259827, 287326, 376766, 430989, 519654, 565149, 861978, 1125917, 1130298, 2251834, 3377751, 3724187, 6755502, 7448374, 11172561, 22345122, 48414431, 96828862, 145243293, 290486586]

約数ペア:

[(1, 290486586), (2, 145243293), (3, 96828862), (6, 48414431), (13, 22345122), (26, 11172561), (39, 7448374), (43, 6755502), (78, 3724187), (86, 3377751), (129, 2251834), (257, 1130298), (258, 1125917), (337, 861978), (514, 565149), (559, 519654), (674, 430989), (771, 376766), (1011, 287326), (1118, 259827), (1542, 188383), (1677, 173218), (2022, 143663), (3341, 86946), (3354, 86609), (4381, 66306), (6682, 43473), (8762, 33153), (10023, 28982), (11051, 26286), (13143, 22102), (14491, 20046)]