204784720

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{439}}^1$

素因数の和:490

約数の個数: 160

約数和(自身を含む): 589248000

約数和(自身を除く): 384463280

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, 238, 245, 272, 280, 340, 343, 392, 439, 476, 490, 560, 595, 680, 686, 784, 833, 878, 952, 980, 1190, 1360, 1372, 1666, 1715, 1756, 1904, 1960, 2195, 2380, 2744, 3073, 3332, 3430, 3512, 3920, 4165, 4390, 4760, 5488, 5831, 6146, 6664, 6860, 7024, 7463, 8330, 8780, 9520, 11662, 12292, 13328, 13720, 14926, 15365, 16660, 17560, 21511, 23324, 24584, 27440, 29155, 29852, 30730, 33320, 35120, 37315, 43022, 46648, 49168, 52241, 58310, 59704, 61460, 66640, 74630, 86044, 93296, 104482, 107555, 116620, 119408, 122920, 149260, 150577, 172088, 208964, 215110, 233240, 245840, 261205, 298520, 301154, 344176, 365687, 417928, 430220, 466480, 522410, 597040, 602308, 731374, 752885, 835856, 860440, 1044820, 1204616, 1462748, 1505770, 1720880, 1828435, 2089640, 2409232, 2559809, 2925496, 3011540, 3656870, 4179280, 5119618, 5850992, 6023080, 7313740, 10239236, 12046160, 12799045, 14627480, 20478472, 25598090, 29254960, 40956944, 51196180, 102392360, 204784720]

約数ペア:

[(1, 204784720), (2, 102392360), (4, 51196180), (5, 40956944), (7, 29254960), (8, 25598090), (10, 20478472), (14, 14627480), (16, 12799045), (17, 12046160), (20, 10239236), (28, 7313740), (34, 6023080), (35, 5850992), (40, 5119618), (49, 4179280), (56, 3656870), (68, 3011540), (70, 2925496), (80, 2559809), (85, 2409232), (98, 2089640), (112, 1828435), (119, 1720880), (136, 1505770), (140, 1462748), (170, 1204616), (196, 1044820), (238, 860440), (245, 835856), (272, 752885), (280, 731374), (340, 602308), (343, 597040), (392, 522410), (439, 466480), (476, 430220), (490, 417928), (560, 365687), (595, 344176), (680, 301154), (686, 298520), (784, 261205), (833, 245840), (878, 233240), (952, 215110), (980, 208964), (1190, 172088), (1360, 150577), (1372, 149260), (1666, 122920), (1715, 119408), (1756, 116620), (1904, 107555), (1960, 104482), (2195, 93296), (2380, 86044), (2744, 74630), (3073, 66640), (3332, 61460), (3430, 59704), (3512, 58310), (3920, 52241), (4165, 49168), (4390, 46648), (4760, 43022), (5488, 37315), (5831, 35120), (6146, 33320), (6664, 30730), (6860, 29852), (7024, 29155), (7463, 27440), (8330, 24584), (8780, 23324), (9520, 21511), (11662, 17560), (12292, 16660), (13328, 15365), (13720, 14926)]