389301780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{821}}^1\times {\mathrm{1129}}^1$

素因数の和:1969

約数の個数: 96

約数和(自身を含む): 1248387840

約数和(自身を除く): 859086060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 821, 1129, 1642, 2258, 2463, 3284, 3387, 4105, 4516, 4926, 5645, 5747, 6774, 7903, 8210, 9852, 11290, 11494, 12315, 13548, 15806, 16420, 16935, 17241, 22580, 22988, 23709, 24630, 28735, 31612, 33870, 34482, 39515, 47418, 49260, 57470, 67740, 68964, 79030, 86205, 94836, 114940, 118545, 158060, 172410, 237090, 344820, 474180, 926909, 1853818, 2780727, 3707636, 4634545, 5561454, 6488363, 9269090, 11122908, 12976726, 13903635, 18538180, 19465089, 25953452, 27807270, 32441815, 38930178, 55614540, 64883630, 77860356, 97325445, 129767260, 194650890, 389301780]

約数ペア:

[(1, 389301780), (2, 194650890), (3, 129767260), (4, 97325445), (5, 77860356), (6, 64883630), (7, 55614540), (10, 38930178), (12, 32441815), (14, 27807270), (15, 25953452), (20, 19465089), (21, 18538180), (28, 13903635), (30, 12976726), (35, 11122908), (42, 9269090), (60, 6488363), (70, 5561454), (84, 4634545), (105, 3707636), (140, 2780727), (210, 1853818), (420, 926909), (821, 474180), (1129, 344820), (1642, 237090), (2258, 172410), (2463, 158060), (3284, 118545), (3387, 114940), (4105, 94836), (4516, 86205), (4926, 79030), (5645, 68964), (5747, 67740), (6774, 57470), (7903, 49260), (8210, 47418), (9852, 39515), (11290, 34482), (11494, 33870), (12315, 31612), (13548, 28735), (15806, 24630), (16420, 23709), (16935, 22988), (17241, 22580)]