209407380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5479}}^1$

素因数の和:5518

約数の個数: 144

約数和(自身を含む): 734670720

約数和(自身を除く): 525263340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 588, 637, 735, 780, 910, 980, 1092, 1274, 1365, 1470, 1820, 1911, 2548, 2730, 2940, 3185, 3822, 5460, 5479, 6370, 7644, 9555, 10958, 12740, 16437, 19110, 21916, 27395, 32874, 38220, 38353, 54790, 65748, 71227, 76706, 82185, 109580, 115059, 142454, 153412, 164370, 191765, 213681, 230118, 268471, 284908, 328740, 356135, 383530, 427362, 460236, 498589, 536942, 575295, 712270, 767060, 805413, 854724, 997178, 1068405, 1073884, 1150590, 1342355, 1424540, 1495767, 1610826, 1994356, 2136810, 2301180, 2492945, 2684710, 2991534, 3221652, 3490123, 4027065, 4273620, 4985890, 5369420, 5983068, 6980246, 7478835, 8054130, 9971780, 10470369, 13960492, 14957670, 16108260, 17450615, 20940738, 29915340, 34901230, 41881476, 52351845, 69802460, 104703690, 209407380]

約数ペア:

[(1, 209407380), (2, 104703690), (3, 69802460), (4, 52351845), (5, 41881476), (6, 34901230), (7, 29915340), (10, 20940738), (12, 17450615), (13, 16108260), (14, 14957670), (15, 13960492), (20, 10470369), (21, 9971780), (26, 8054130), (28, 7478835), (30, 6980246), (35, 5983068), (39, 5369420), (42, 4985890), (49, 4273620), (52, 4027065), (60, 3490123), (65, 3221652), (70, 2991534), (78, 2684710), (84, 2492945), (91, 2301180), (98, 2136810), (105, 1994356), (130, 1610826), (140, 1495767), (147, 1424540), (156, 1342355), (182, 1150590), (195, 1073884), (196, 1068405), (210, 997178), (245, 854724), (260, 805413), (273, 767060), (294, 712270), (364, 575295), (390, 536942), (420, 498589), (455, 460236), (490, 427362), (546, 383530), (588, 356135), (637, 328740), (735, 284908), (780, 268471), (910, 230118), (980, 213681), (1092, 191765), (1274, 164370), (1365, 153412), (1470, 142454), (1820, 115059), (1911, 109580), (2548, 82185), (2730, 76706), (2940, 71227), (3185, 65748), (3822, 54790), (5460, 38353), (5479, 38220), (6370, 32874), (7644, 27395), (9555, 21916), (10958, 19110), (12740, 16437)]