86640640

素因数分解:

$2^{11}\times 5^1\times {\mathrm{8461}}^1$

素因数の和:8488

約数の個数: 48

約数和(自身を含む): 207911340

約数和(自身を除く): 121270700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 8461, 10240, 16922, 33844, 42305, 67688, 84610, 135376, 169220, 270752, 338440, 541504, 676880, 1083008, 1353760, 2166016, 2707520, 4332032, 5415040, 8664064, 10830080, 17328128, 21660160, 43320320, 86640640]

約数ペア:

[(1, 86640640), (2, 43320320), (4, 21660160), (5, 17328128), (8, 10830080), (10, 8664064), (16, 5415040), (20, 4332032), (32, 2707520), (40, 2166016), (64, 1353760), (80, 1083008), (128, 676880), (160, 541504), (256, 338440), (320, 270752), (512, 169220), (640, 135376), (1024, 84610), (1280, 67688), (2048, 42305), (2560, 33844), (5120, 16922), (8461, 10240)]