313886820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{402419}}^1$

素因数の和:402444

約数の個数: 48

約数和(自身を含む): 946491840

約数和(自身を除く): 632605020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 402419, 804838, 1207257, 1609676, 2012095, 2414514, 4024190, 4829028, 5231447, 6036285, 8048380, 10462894, 12072570, 15694341, 20925788, 24145140, 26157235, 31388682, 52314470, 62777364, 78471705, 104628940, 156943410, 313886820]

約数ペア:

[(1, 313886820), (2, 156943410), (3, 104628940), (4, 78471705), (5, 62777364), (6, 52314470), (10, 31388682), (12, 26157235), (13, 24145140), (15, 20925788), (20, 15694341), (26, 12072570), (30, 10462894), (39, 8048380), (52, 6036285), (60, 5231447), (65, 4829028), (78, 4024190), (130, 2414514), (156, 2012095), (195, 1609676), (260, 1207257), (390, 804838), (780, 402419)]