20102280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 66890880

約数和(自身を除く): 46788600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 97, 110, 120, 132, 157, 165, 194, 220, 264, 291, 314, 330, 388, 440, 471, 485, 582, 628, 660, 776, 785, 942, 970, 1067, 1164, 1256, 1320, 1455, 1570, 1727, 1884, 1940, 2134, 2328, 2355, 2910, 3140, 3201, 3454, 3768, 3880, 4268, 4710, 5181, 5335, 5820, 6280, 6402, 6908, 8536, 8635, 9420, 10362, 10670, 11640, 12804, 13816, 15229, 16005, 17270, 18840, 20724, 21340, 25608, 25905, 30458, 32010, 34540, 41448, 42680, 45687, 51810, 60916, 64020, 69080, 76145, 91374, 103620, 121832, 128040, 152290, 167519, 182748, 207240, 228435, 304580, 335038, 365496, 456870, 502557, 609160, 670076, 837595, 913740, 1005114, 1340152, 1675190, 1827480, 2010228, 2512785, 3350380, 4020456, 5025570, 6700760, 10051140, 20102280]

約数ペア:

[(1, 20102280), (2, 10051140), (3, 6700760), (4, 5025570), (5, 4020456), (6, 3350380), (8, 2512785), (10, 2010228), (11, 1827480), (12, 1675190), (15, 1340152), (20, 1005114), (22, 913740), (24, 837595), (30, 670076), (33, 609160), (40, 502557), (44, 456870), (55, 365496), (60, 335038), (66, 304580), (88, 228435), (97, 207240), (110, 182748), (120, 167519), (132, 152290), (157, 128040), (165, 121832), (194, 103620), (220, 91374), (264, 76145), (291, 69080), (314, 64020), (330, 60916), (388, 51810), (440, 45687), (471, 42680), (485, 41448), (582, 34540), (628, 32010), (660, 30458), (776, 25905), (785, 25608), (942, 21340), (970, 20724), (1067, 18840), (1164, 17270), (1256, 16005), (1320, 15229), (1455, 13816), (1570, 12804), (1727, 11640), (1884, 10670), (1940, 10362), (2134, 9420), (2328, 8635), (2355, 8536), (2910, 6908), (3140, 6402), (3201, 6280), (3454, 5820), (3768, 5335), (3880, 5181), (4268, 4710)]