329879680

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1342

約数の個数: 128

約数和(自身を含む): 877363200

約数和(自身を除く): 547483520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1279, 1612, 1664, 1984, 2015, 2080, 2480, 2558, 3224, 3968, 4030, 4160, 4960, 5116, 6395, 6448, 8060, 8320, 9920, 10232, 12790, 12896, 16120, 16627, 19840, 20464, 25580, 25792, 32240, 33254, 39649, 40928, 51160, 51584, 64480, 66508, 79298, 81856, 83135, 102320, 128960, 133016, 158596, 163712, 166270, 198245, 204640, 257920, 266032, 317192, 332540, 396490, 409280, 515437, 532064, 634384, 665080, 792980, 818560, 1030874, 1064128, 1268768, 1330160, 1585960, 2061748, 2128256, 2537536, 2577185, 2660320, 3171920, 4123496, 5075072, 5154370, 5320640, 6343840, 8246992, 10308740, 10641280, 12687680, 16493984, 20617480, 25375360, 32987968, 41234960, 65975936, 82469920, 164939840, 329879680]

約数ペア:

[(1, 329879680), (2, 164939840), (4, 82469920), (5, 65975936), (8, 41234960), (10, 32987968), (13, 25375360), (16, 20617480), (20, 16493984), (26, 12687680), (31, 10641280), (32, 10308740), (40, 8246992), (52, 6343840), (62, 5320640), (64, 5154370), (65, 5075072), (80, 4123496), (104, 3171920), (124, 2660320), (128, 2577185), (130, 2537536), (155, 2128256), (160, 2061748), (208, 1585960), (248, 1330160), (260, 1268768), (310, 1064128), (320, 1030874), (403, 818560), (416, 792980), (496, 665080), (520, 634384), (620, 532064), (640, 515437), (806, 409280), (832, 396490), (992, 332540), (1040, 317192), (1240, 266032), (1279, 257920), (1612, 204640), (1664, 198245), (1984, 166270), (2015, 163712), (2080, 158596), (2480, 133016), (2558, 128960), (3224, 102320), (3968, 83135), (4030, 81856), (4160, 79298), (4960, 66508), (5116, 64480), (6395, 51584), (6448, 51160), (8060, 40928), (8320, 39649), (9920, 33254), (10232, 32240), (12790, 25792), (12896, 25580), (16120, 20464), (16627, 19840)]