2800979775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:374

約数の個数: 144

約数和(自身を含む): 5653245312

約数和(自身を除く): 2852265537

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 53, 55, 75, 99, 131, 159, 163, 165, 225, 265, 275, 393, 477, 489, 495, 583, 655, 795, 815, 825, 1179, 1325, 1441, 1467, 1749, 1793, 1965, 2385, 2445, 2475, 2915, 3275, 3975, 4075, 4323, 5247, 5379, 5895, 6943, 7205, 7335, 8639, 8745, 8965, 9825, 11925, 12225, 12969, 14575, 16137, 20829, 21353, 21615, 25917, 26235, 26895, 29475, 34715, 36025, 36675, 43195, 43725, 44825, 62487, 64059, 64845, 76373, 77751, 80685, 95029, 104145, 106765, 108075, 129585, 131175, 134475, 173575, 192177, 215975, 229119, 234883, 285087, 312435, 320295, 324225, 381865, 388755, 403425, 475145, 520725, 533825, 647925, 687357, 704649, 855261, 960885, 1131709, 1145595, 1174415, 1425435, 1562175, 1601475, 1909325, 1943775, 2113947, 2375725, 3395127, 3436785, 3523245, 4276305, 4804425, 5658545, 5727975, 5872075, 7127175, 10185381, 10569735, 12448799, 16975635, 17183925, 17616225, 21381525, 28292725, 37346397, 50926905, 52848675, 62243995, 84878175, 112039191, 186731985, 254634525, 311219975, 560195955, 933659925, 2800979775]

約数ペア:

[(1, 2800979775), (3, 933659925), (5, 560195955), (9, 311219975), (11, 254634525), (15, 186731985), (25, 112039191), (33, 84878175), (45, 62243995), (53, 52848675), (55, 50926905), (75, 37346397), (99, 28292725), (131, 21381525), (159, 17616225), (163, 17183925), (165, 16975635), (225, 12448799), (265, 10569735), (275, 10185381), (393, 7127175), (477, 5872075), (489, 5727975), (495, 5658545), (583, 4804425), (655, 4276305), (795, 3523245), (815, 3436785), (825, 3395127), (1179, 2375725), (1325, 2113947), (1441, 1943775), (1467, 1909325), (1749, 1601475), (1793, 1562175), (1965, 1425435), (2385, 1174415), (2445, 1145595), (2475, 1131709), (2915, 960885), (3275, 855261), (3975, 704649), (4075, 687357), (4323, 647925), (5247, 533825), (5379, 520725), (5895, 475145), (6943, 403425), (7205, 388755), (7335, 381865), (8639, 324225), (8745, 320295), (8965, 312435), (9825, 285087), (11925, 234883), (12225, 229119), (12969, 215975), (14575, 192177), (16137, 173575), (20829, 134475), (21353, 131175), (21615, 129585), (25917, 108075), (26235, 106765), (26895, 104145), (29475, 95029), (34715, 80685), (36025, 77751), (36675, 76373), (43195, 64845), (43725, 64059), (44825, 62487)]