728175280

素因数分解:

$2^4\times 5^1\times 7^4\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:281

約数の個数: 200

約数和(自身を含む): 2100615552

約数和(自身を除く): 1372440272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 223, 238, 245, 272, 280, 340, 343, 392, 446, 476, 490, 560, 595, 680, 686, 784, 833, 892, 952, 980, 1115, 1190, 1360, 1372, 1561, 1666, 1715, 1784, 1904, 1960, 2230, 2380, 2401, 2744, 3122, 3332, 3430, 3568, 3791, 3920, 4165, 4460, 4760, 4802, 5488, 5831, 6244, 6664, 6860, 7582, 7805, 8330, 8920, 9520, 9604, 10927, 11662, 12005, 12488, 13328, 13720, 15164, 15610, 16660, 17840, 18955, 19208, 21854, 23324, 24010, 24976, 26537, 27440, 29155, 30328, 31220, 33320, 37910, 38416, 40817, 43708, 46648, 48020, 53074, 54635, 58310, 60656, 62440, 66640, 75820, 76489, 81634, 87416, 93296, 96040, 106148, 109270, 116620, 124880, 132685, 151640, 152978, 163268, 174832, 185759, 192080, 204085, 212296, 218540, 233240, 265370, 303280, 305956, 326536, 371518, 382445, 408170, 424592, 437080, 466480, 530740, 535423, 611912, 653072, 743036, 764890, 816340, 874160, 928795, 1061480, 1070846, 1223824, 1300313, 1486072, 1529780, 1632680, 1857590, 2122960, 2141692, 2600626, 2677115, 2972144, 3059560, 3265360, 3715180, 4283384, 5201252, 5354230, 6119120, 6501565, 7430360, 8566768, 9102191, 10402504, 10708460, 13003130, 14860720, 18204382, 20805008, 21416920, 26006260, 36408764, 42833840, 45510955, 52012520, 72817528, 91021910, 104025040, 145635056, 182043820, 364087640, 728175280]

約数ペア:

[(1, 728175280), (2, 364087640), (4, 182043820), (5, 145635056), (7, 104025040), (8, 91021910), (10, 72817528), (14, 52012520), (16, 45510955), (17, 42833840), (20, 36408764), (28, 26006260), (34, 21416920), (35, 20805008), (40, 18204382), (49, 14860720), (56, 13003130), (68, 10708460), (70, 10402504), (80, 9102191), (85, 8566768), (98, 7430360), (112, 6501565), (119, 6119120), (136, 5354230), (140, 5201252), (170, 4283384), (196, 3715180), (223, 3265360), (238, 3059560), (245, 2972144), (272, 2677115), (280, 2600626), (340, 2141692), (343, 2122960), (392, 1857590), (446, 1632680), (476, 1529780), (490, 1486072), (560, 1300313), (595, 1223824), (680, 1070846), (686, 1061480), (784, 928795), (833, 874160), (892, 816340), (952, 764890), (980, 743036), (1115, 653072), (1190, 611912), (1360, 535423), (1372, 530740), (1561, 466480), (1666, 437080), (1715, 424592), (1784, 408170), (1904, 382445), (1960, 371518), (2230, 326536), (2380, 305956), (2401, 303280), (2744, 265370), (3122, 233240), (3332, 218540), (3430, 212296), (3568, 204085), (3791, 192080), (3920, 185759), (4165, 174832), (4460, 163268), (4760, 152978), (4802, 151640), (5488, 132685), (5831, 124880), (6244, 116620), (6664, 109270), (6860, 106148), (7582, 96040), (7805, 93296), (8330, 87416), (8920, 81634), (9520, 76489), (9604, 75820), (10927, 66640), (11662, 62440), (12005, 60656), (12488, 58310), (13328, 54635), (13720, 53074), (15164, 48020), (15610, 46648), (16660, 43708), (17840, 40817), (18955, 38416), (19208, 37910), (21854, 33320), (23324, 31220), (24010, 30328), (24976, 29155), (26537, 27440)]