318859840

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76649}}^1$

素因数の和:76679

約数の個数: 56

約数和(自身を含む): 817702200

約数和(自身を除く): 498842360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 76649, 153298, 306596, 383245, 613192, 766490, 996437, 1226384, 1532980, 1992874, 2452768, 3065960, 3985748, 4905536, 4982185, 6131920, 7971496, 9964370, 12263840, 15942992, 19928740, 24527680, 31885984, 39857480, 63771968, 79714960, 159429920, 318859840]

約数ペア:

[(1, 318859840), (2, 159429920), (4, 79714960), (5, 63771968), (8, 39857480), (10, 31885984), (13, 24527680), (16, 19928740), (20, 15942992), (26, 12263840), (32, 9964370), (40, 7971496), (52, 6131920), (64, 4982185), (65, 4905536), (80, 3985748), (104, 3065960), (130, 2452768), (160, 1992874), (208, 1532980), (260, 1226384), (320, 996437), (416, 766490), (520, 613192), (832, 383245), (1040, 306596), (2080, 153298), (4160, 76649)]