78845900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{16091}}^1$

素因数の和:16119

約数の個数: 54

約数和(自身を含む): 199041948

約数和(自身を除く): 120196048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 16091, 32182, 64364, 80455, 112637, 160910, 225274, 321820, 402275, 450548, 563185, 788459, 804550, 1126370, 1576918, 1609100, 2252740, 2815925, 3153836, 3942295, 5631850, 7884590, 11263700, 15769180, 19711475, 39422950, 78845900]

約数ペア:

[(1, 78845900), (2, 39422950), (4, 19711475), (5, 15769180), (7, 11263700), (10, 7884590), (14, 5631850), (20, 3942295), (25, 3153836), (28, 2815925), (35, 2252740), (49, 1609100), (50, 1576918), (70, 1126370), (98, 804550), (100, 788459), (140, 563185), (175, 450548), (196, 402275), (245, 321820), (350, 225274), (490, 160910), (700, 112637), (980, 80455), (1225, 64364), (2450, 32182), (4900, 16091)]