215047280

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{461}}^1$

素因数の和:512

約数の個数: 160

約数和(自身を含む): 618710400

約数和(自身を除く): 403663120

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, 461, 476, 490, 560, 595, 680, 686, 784, 833, 922, 952, 980, 1190, 1360, 1372, 1666, 1715, 1844, 1904, 1960, 2305, 2380, 2744, 3227, 3332, 3430, 3688, 3920, 4165, 4610, 4760, 5488, 5831, 6454, 6664, 6860, 7376, 7837, 8330, 9220, 9520, 11662, 12908, 13328, 13720, 15674, 16135, 16660, 18440, 22589, 23324, 25816, 27440, 29155, 31348, 32270, 33320, 36880, 39185, 45178, 46648, 51632, 54859, 58310, 62696, 64540, 66640, 78370, 90356, 93296, 109718, 112945, 116620, 125392, 129080, 156740, 158123, 180712, 219436, 225890, 233240, 258160, 274295, 313480, 316246, 361424, 384013, 438872, 451780, 466480, 548590, 626960, 632492, 768026, 790615, 877744, 903560, 1097180, 1264984, 1536052, 1581230, 1807120, 1920065, 2194360, 2529968, 2688091, 3072104, 3162460, 3840130, 4388720, 5376182, 6144208, 6324920, 7680260, 10752364, 12649840, 13440455, 15360520, 21504728, 26880910, 30721040, 43009456, 53761820, 107523640, 215047280]

約数ペア:

[(1, 215047280), (2, 107523640), (4, 53761820), (5, 43009456), (7, 30721040), (8, 26880910), (10, 21504728), (14, 15360520), (16, 13440455), (17, 12649840), (20, 10752364), (28, 7680260), (34, 6324920), (35, 6144208), (40, 5376182), (49, 4388720), (56, 3840130), (68, 3162460), (70, 3072104), (80, 2688091), (85, 2529968), (98, 2194360), (112, 1920065), (119, 1807120), (136, 1581230), (140, 1536052), (170, 1264984), (196, 1097180), (238, 903560), (245, 877744), (272, 790615), (280, 768026), (340, 632492), (343, 626960), (392, 548590), (461, 466480), (476, 451780), (490, 438872), (560, 384013), (595, 361424), (680, 316246), (686, 313480), (784, 274295), (833, 258160), (922, 233240), (952, 225890), (980, 219436), (1190, 180712), (1360, 158123), (1372, 156740), (1666, 129080), (1715, 125392), (1844, 116620), (1904, 112945), (1960, 109718), (2305, 93296), (2380, 90356), (2744, 78370), (3227, 66640), (3332, 64540), (3430, 62696), (3688, 58310), (3920, 54859), (4165, 51632), (4610, 46648), (4760, 45178), (5488, 39185), (5831, 36880), (6454, 33320), (6664, 32270), (6860, 31348), (7376, 29155), (7837, 27440), (8330, 25816), (9220, 23324), (9520, 22589), (11662, 18440), (12908, 16660), (13328, 16135), (13720, 15674)]