209021680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2939}}^1$

素因数の和:3086

約数の個数: 80

約数和(自身を含む): 559964160

約数和(自身を除く): 350942480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1270, 1778, 2032, 2540, 2939, 3556, 4445, 5080, 5878, 7112, 8890, 10160, 11756, 14224, 14695, 17780, 20573, 23512, 29390, 35560, 41146, 47024, 58780, 71120, 82292, 102865, 117560, 164584, 205730, 235120, 329168, 373253, 411460, 746506, 822920, 1493012, 1645840, 1866265, 2612771, 2986024, 3732530, 5225542, 5972048, 7465060, 10451084, 13063855, 14930120, 20902168, 26127710, 29860240, 41804336, 52255420, 104510840, 209021680]

約数ペア:

[(1, 209021680), (2, 104510840), (4, 52255420), (5, 41804336), (7, 29860240), (8, 26127710), (10, 20902168), (14, 14930120), (16, 13063855), (20, 10451084), (28, 7465060), (35, 5972048), (40, 5225542), (56, 3732530), (70, 2986024), (80, 2612771), (112, 1866265), (127, 1645840), (140, 1493012), (254, 822920), (280, 746506), (508, 411460), (560, 373253), (635, 329168), (889, 235120), (1016, 205730), (1270, 164584), (1778, 117560), (2032, 102865), (2540, 82292), (2939, 71120), (3556, 58780), (4445, 47024), (5080, 41146), (5878, 35560), (7112, 29390), (8890, 23512), (10160, 20573), (11756, 17780), (14224, 14695)]