82890800

素因数分解:

$2^4\times 5^2\times {\mathrm{207227}}^1$

素因数の和:207245

約数の個数: 30

約数和(自身を含む): 199146108

約数和(自身を除く): 116255308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 207227, 414454, 828908, 1036135, 1657816, 2072270, 3315632, 4144540, 5180675, 8289080, 10361350, 16578160, 20722700, 41445400, 82890800]

約数ペア:

[(1, 82890800), (2, 41445400), (4, 20722700), (5, 16578160), (8, 10361350), (10, 8289080), (16, 5180675), (20, 4144540), (25, 3315632), (40, 2072270), (50, 1657816), (80, 1036135), (100, 828908), (200, 414454), (400, 207227)]