49780640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:311

約数の個数: 144

約数和(自身を含む): 146095488

約数和(自身を除く): 96314848

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 224, 260, 263, 280, 338, 364, 416, 455, 520, 526, 560, 676, 728, 845, 910, 1040, 1052, 1120, 1183, 1315, 1352, 1456, 1690, 1820, 1841, 2080, 2104, 2366, 2630, 2704, 2912, 3380, 3419, 3640, 3682, 4208, 4732, 5260, 5408, 5915, 6760, 6838, 7280, 7364, 8416, 9205, 9464, 10520, 11830, 13520, 13676, 14560, 14728, 17095, 18410, 18928, 21040, 23660, 23933, 27040, 27352, 29456, 34190, 36820, 37856, 42080, 44447, 47320, 47866, 54704, 58912, 68380, 73640, 88894, 94640, 95732, 109408, 119665, 136760, 147280, 177788, 189280, 191464, 222235, 239330, 273520, 294560, 311129, 355576, 382928, 444470, 478660, 547040, 622258, 711152, 765856, 888940, 957320, 1244516, 1422304, 1555645, 1777880, 1914640, 2489032, 3111290, 3555760, 3829280, 4978064, 6222580, 7111520, 9956128, 12445160, 24890320, 49780640]

約数ペア:

[(1, 49780640), (2, 24890320), (4, 12445160), (5, 9956128), (7, 7111520), (8, 6222580), (10, 4978064), (13, 3829280), (14, 3555760), (16, 3111290), (20, 2489032), (26, 1914640), (28, 1777880), (32, 1555645), (35, 1422304), (40, 1244516), (52, 957320), (56, 888940), (65, 765856), (70, 711152), (80, 622258), (91, 547040), (104, 478660), (112, 444470), (130, 382928), (140, 355576), (160, 311129), (169, 294560), (182, 273520), (208, 239330), (224, 222235), (260, 191464), (263, 189280), (280, 177788), (338, 147280), (364, 136760), (416, 119665), (455, 109408), (520, 95732), (526, 94640), (560, 88894), (676, 73640), (728, 68380), (845, 58912), (910, 54704), (1040, 47866), (1052, 47320), (1120, 44447), (1183, 42080), (1315, 37856), (1352, 36820), (1456, 34190), (1690, 29456), (1820, 27352), (1841, 27040), (2080, 23933), (2104, 23660), (2366, 21040), (2630, 18928), (2704, 18410), (2912, 17095), (3380, 14728), (3419, 14560), (3640, 13676), (3682, 13520), (4208, 11830), (4732, 10520), (5260, 9464), (5408, 9205), (5915, 8416), (6760, 7364), (6838, 7280)]