61142800

素因数分解:

$2^4\times 5^2\times {\mathrm{152857}}^1$

素因数の和:152875

約数の個数: 30

約数和(自身を含む): 146896538

約数和(自身を除く): 85753738

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 152857, 305714, 611428, 764285, 1222856, 1528570, 2445712, 3057140, 3821425, 6114280, 7642850, 12228560, 15285700, 30571400, 61142800]

約数ペア:

[(1, 61142800), (2, 30571400), (4, 15285700), (5, 12228560), (8, 7642850), (10, 6114280), (16, 3821425), (20, 3057140), (25, 2445712), (40, 1528570), (50, 1222856), (80, 764285), (100, 611428), (200, 305714), (400, 152857)]