78815680

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3469}}^1$

素因数の和:3557

約数の個数: 56

約数和(自身を含む): 190378080

約数和(自身を除く): 111562400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 3469, 4544, 5680, 6938, 11360, 13876, 17345, 22720, 27752, 34690, 55504, 69380, 111008, 138760, 222016, 246299, 277520, 492598, 555040, 985196, 1110080, 1231495, 1970392, 2462990, 3940784, 4925980, 7881568, 9851960, 15763136, 19703920, 39407840, 78815680]

約数ペア:

[(1, 78815680), (2, 39407840), (4, 19703920), (5, 15763136), (8, 9851960), (10, 7881568), (16, 4925980), (20, 3940784), (32, 2462990), (40, 1970392), (64, 1231495), (71, 1110080), (80, 985196), (142, 555040), (160, 492598), (284, 277520), (320, 246299), (355, 222016), (568, 138760), (710, 111008), (1136, 69380), (1420, 55504), (2272, 34690), (2840, 27752), (3469, 22720), (4544, 17345), (5680, 13876), (6938, 11360)]