205057320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131447}}^1$

素因数の和:131474

約数の個数: 64

約数和(自身を含む): 662497920

約数和(自身を除く): 457440600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 131447, 262894, 394341, 525788, 657235, 788682, 1051576, 1314470, 1577364, 1708811, 1971705, 2628940, 3154728, 3417622, 3943410, 5126433, 5257880, 6835244, 7886820, 8544055, 10252866, 13670488, 15773640, 17088110, 20505732, 25632165, 34176220, 41011464, 51264330, 68352440, 102528660, 205057320]

約数ペア:

[(1, 205057320), (2, 102528660), (3, 68352440), (4, 51264330), (5, 41011464), (6, 34176220), (8, 25632165), (10, 20505732), (12, 17088110), (13, 15773640), (15, 13670488), (20, 10252866), (24, 8544055), (26, 7886820), (30, 6835244), (39, 5257880), (40, 5126433), (52, 3943410), (60, 3417622), (65, 3154728), (78, 2628940), (104, 1971705), (120, 1708811), (130, 1577364), (156, 1314470), (195, 1051576), (260, 788682), (312, 657235), (390, 525788), (520, 394341), (780, 262894), (1560, 131447)]