81710080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15959}}^1$

素因数の和:15984

約数の個数: 44

約数和(自身を含む): 196020720

約数和(自身を除く): 114310640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15959, 31918, 63836, 79795, 127672, 159590, 255344, 319180, 510688, 638360, 1021376, 1276720, 2042752, 2553440, 4085504, 5106880, 8171008, 10213760, 16342016, 20427520, 40855040, 81710080]

約数ペア:

[(1, 81710080), (2, 40855040), (4, 20427520), (5, 16342016), (8, 10213760), (10, 8171008), (16, 5106880), (20, 4085504), (32, 2553440), (40, 2042752), (64, 1276720), (80, 1021376), (128, 638360), (160, 510688), (256, 319180), (320, 255344), (512, 159590), (640, 127672), (1024, 79795), (1280, 63836), (2560, 31918), (5120, 15959)]