78845000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{1213}}^1$

素因数の和:1252

約数の個数: 80

約数和(自身を含む): 199108140

約数和(自身を除く): 120263140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 625, 650, 1000, 1213, 1250, 1300, 1625, 2426, 2500, 2600, 3250, 4852, 5000, 6065, 6500, 8125, 9704, 12130, 13000, 15769, 16250, 24260, 30325, 31538, 32500, 48520, 60650, 63076, 65000, 78845, 121300, 126152, 151625, 157690, 242600, 303250, 315380, 394225, 606500, 630760, 758125, 788450, 1213000, 1516250, 1576900, 1971125, 3032500, 3153800, 3942250, 6065000, 7884500, 9855625, 15769000, 19711250, 39422500, 78845000]

約数ペア:

[(1, 78845000), (2, 39422500), (4, 19711250), (5, 15769000), (8, 9855625), (10, 7884500), (13, 6065000), (20, 3942250), (25, 3153800), (26, 3032500), (40, 1971125), (50, 1576900), (52, 1516250), (65, 1213000), (100, 788450), (104, 758125), (125, 630760), (130, 606500), (200, 394225), (250, 315380), (260, 303250), (325, 242600), (500, 157690), (520, 151625), (625, 126152), (650, 121300), (1000, 78845), (1213, 65000), (1250, 63076), (1300, 60650), (1625, 48520), (2426, 32500), (2500, 31538), (2600, 30325), (3250, 24260), (4852, 16250), (5000, 15769), (6065, 13000), (6500, 12130), (8125, 9704)]