81890350

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71209}}^1$

素因数の和:71244

約数の個数: 24

約数和(自身を含む): 158940720

約数和(自身を除く): 77050370

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 575, 1150, 71209, 142418, 356045, 712090, 1637807, 1780225, 3275614, 3560450, 8189035, 16378070, 40945175, 81890350]

約数ペア:

[(1, 81890350), (2, 40945175), (5, 16378070), (10, 8189035), (23, 3560450), (25, 3275614), (46, 1780225), (50, 1637807), (115, 712090), (230, 356045), (575, 142418), (1150, 71209)]