207289900

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{23291}}^1$

素因数の和:23394

約数の個数: 36

約数和(自身を含む): 454892760

約数和(自身を除く): 247602860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 23291, 46582, 93164, 116455, 232910, 465820, 582275, 1164550, 2072899, 2329100, 4145798, 8291596, 10364495, 20728990, 41457980, 51822475, 103644950, 207289900]

約数ペア:

[(1, 207289900), (2, 103644950), (4, 51822475), (5, 41457980), (10, 20728990), (20, 10364495), (25, 8291596), (50, 4145798), (89, 2329100), (100, 2072899), (178, 1164550), (356, 582275), (445, 465820), (890, 232910), (1780, 116455), (2225, 93164), (4450, 46582), (8900, 23291)]