19408804900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{389}}^1\times {\mathrm{4663}}^1$

素因数の和:5173

約数の個数: 72

約数和(自身を含む): 42629146560

約数和(自身を除く): 23220341660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 389, 428, 535, 778, 1070, 1556, 1945, 2140, 2675, 3890, 4663, 5350, 7780, 9326, 9725, 10700, 18652, 19450, 23315, 38900, 41623, 46630, 83246, 93260, 116575, 166492, 208115, 233150, 416230, 466300, 498941, 832460, 997882, 1040575, 1813907, 1995764, 2081150, 2494705, 3627814, 4162300, 4989410, 7255628, 9069535, 9978820, 12473525, 18139070, 24947050, 36278140, 45347675, 49894100, 90695350, 181390700, 194088049, 388176098, 776352196, 970440245, 1940880490, 3881760980, 4852201225, 9704402450, 19408804900]

約数ペア:

[(1, 19408804900), (2, 9704402450), (4, 4852201225), (5, 3881760980), (10, 1940880490), (20, 970440245), (25, 776352196), (50, 388176098), (100, 194088049), (107, 181390700), (214, 90695350), (389, 49894100), (428, 45347675), (535, 36278140), (778, 24947050), (1070, 18139070), (1556, 12473525), (1945, 9978820), (2140, 9069535), (2675, 7255628), (3890, 4989410), (4663, 4162300), (5350, 3627814), (7780, 2494705), (9326, 2081150), (9725, 1995764), (10700, 1813907), (18652, 1040575), (19450, 997882), (23315, 832460), (38900, 498941), (41623, 466300), (46630, 416230), (83246, 233150), (93260, 208115), (116575, 166492)]