80697890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1347

約数の個数: 64

約数和(自身を含む): 181440000

約数和(自身を除く): 100742110

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 71, 91, 130, 142, 182, 355, 455, 497, 710, 910, 923, 994, 1249, 1846, 2485, 2498, 4615, 4970, 6245, 6461, 8743, 9230, 12490, 12922, 16237, 17486, 32305, 32474, 43715, 64610, 81185, 87430, 88679, 113659, 162370, 177358, 227318, 443395, 568295, 620753, 886790, 1136590, 1152827, 1241506, 2305654, 3103765, 5764135, 6207530, 8069789, 11528270, 16139578, 40348945, 80697890]

約数ペア:

[(1, 80697890), (2, 40348945), (5, 16139578), (7, 11528270), (10, 8069789), (13, 6207530), (14, 5764135), (26, 3103765), (35, 2305654), (65, 1241506), (70, 1152827), (71, 1136590), (91, 886790), (130, 620753), (142, 568295), (182, 443395), (355, 227318), (455, 177358), (497, 162370), (710, 113659), (910, 88679), (923, 87430), (994, 81185), (1249, 64610), (1846, 43715), (2485, 32474), (2498, 32305), (4615, 17486), (4970, 16237), (6245, 12922), (6461, 12490), (8743, 9230)]