28550280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:571

約数の個数: 128

約数和(自身を含む): 95800320

約数和(自身を除く): 67250040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 430, 440, 473, 503, 516, 645, 660, 860, 946, 1006, 1032, 1290, 1320, 1419, 1509, 1720, 1892, 2012, 2365, 2515, 2580, 2838, 3018, 3784, 4024, 4730, 5030, 5160, 5533, 5676, 6036, 7095, 7545, 9460, 10060, 11066, 11352, 12072, 14190, 15090, 16599, 18920, 20120, 21629, 22132, 27665, 28380, 30180, 33198, 43258, 44264, 55330, 56760, 60360, 64887, 66396, 82995, 86516, 108145, 110660, 129774, 132792, 165990, 173032, 216290, 221320, 237919, 259548, 324435, 331980, 432580, 475838, 519096, 648870, 663960, 713757, 865160, 951676, 1189595, 1297740, 1427514, 1903352, 2379190, 2595480, 2855028, 3568785, 4758380, 5710056, 7137570, 9516760, 14275140, 28550280]

約数ペア:

[(1, 28550280), (2, 14275140), (3, 9516760), (4, 7137570), (5, 5710056), (6, 4758380), (8, 3568785), (10, 2855028), (11, 2595480), (12, 2379190), (15, 1903352), (20, 1427514), (22, 1297740), (24, 1189595), (30, 951676), (33, 865160), (40, 713757), (43, 663960), (44, 648870), (55, 519096), (60, 475838), (66, 432580), (86, 331980), (88, 324435), (110, 259548), (120, 237919), (129, 221320), (132, 216290), (165, 173032), (172, 165990), (215, 132792), (220, 129774), (258, 110660), (264, 108145), (330, 86516), (344, 82995), (430, 66396), (440, 64887), (473, 60360), (503, 56760), (516, 55330), (645, 44264), (660, 43258), (860, 33198), (946, 30180), (1006, 28380), (1032, 27665), (1290, 22132), (1320, 21629), (1419, 20120), (1509, 18920), (1720, 16599), (1892, 15090), (2012, 14190), (2365, 12072), (2515, 11352), (2580, 11066), (2838, 10060), (3018, 9460), (3784, 7545), (4024, 7095), (4730, 6036), (5030, 5676), (5160, 5533)]