81107480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22783}}^1$

素因数の和:22883

約数の個数: 32

約数和(自身を含む): 184550400

約数和(自身を除く): 103442920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 22783, 45566, 91132, 113915, 182264, 227830, 455660, 911320, 2027687, 4055374, 8110748, 10138435, 16221496, 20276870, 40553740, 81107480]

約数ペア:

[(1, 81107480), (2, 40553740), (4, 20276870), (5, 16221496), (8, 10138435), (10, 8110748), (20, 4055374), (40, 2027687), (89, 911320), (178, 455660), (356, 227830), (445, 182264), (712, 113915), (890, 91132), (1780, 45566), (3560, 22783)]