82078840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28901}}^1$

素因数の和:28983

約数の個数: 32

約数和(自身を含む): 187284960

約数和(自身を除く): 105206120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 28901, 57802, 115604, 144505, 231208, 289010, 578020, 1156040, 2051971, 4103942, 8207884, 10259855, 16415768, 20519710, 41039420, 82078840]

約数ペア:

[(1, 82078840), (2, 41039420), (4, 20519710), (5, 16415768), (8, 10259855), (10, 8207884), (20, 4103942), (40, 2051971), (71, 1156040), (142, 578020), (284, 289010), (355, 231208), (568, 144505), (710, 115604), (1420, 57802), (2840, 28901)]