257528320

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{2053}}^1$

素因数の和:2090

約数の個数: 120

約数和(自身を含む): 718624764

約数和(自身を除く): 461096444

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 512, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2053, 2240, 2560, 3136, 3584, 3920, 4106, 4480, 6272, 7840, 8212, 8960, 10265, 12544, 14371, 15680, 16424, 17920, 20530, 25088, 28742, 31360, 32848, 41060, 57484, 62720, 65696, 71855, 82120, 100597, 114968, 125440, 131392, 143710, 164240, 201194, 229936, 262784, 287420, 328480, 402388, 459872, 502985, 525568, 574840, 656960, 804776, 919744, 1005970, 1051136, 1149680, 1313920, 1609552, 1839488, 2011940, 2299360, 2627840, 3219104, 3678976, 4023880, 4598720, 5255680, 6438208, 7357952, 8047760, 9197440, 12876416, 16095520, 18394880, 25752832, 32191040, 36789760, 51505664, 64382080, 128764160, 257528320]

約数ペア:

[(1, 257528320), (2, 128764160), (4, 64382080), (5, 51505664), (7, 36789760), (8, 32191040), (10, 25752832), (14, 18394880), (16, 16095520), (20, 12876416), (28, 9197440), (32, 8047760), (35, 7357952), (40, 6438208), (49, 5255680), (56, 4598720), (64, 4023880), (70, 3678976), (80, 3219104), (98, 2627840), (112, 2299360), (128, 2011940), (140, 1839488), (160, 1609552), (196, 1313920), (224, 1149680), (245, 1051136), (256, 1005970), (280, 919744), (320, 804776), (392, 656960), (448, 574840), (490, 525568), (512, 502985), (560, 459872), (640, 402388), (784, 328480), (896, 287420), (980, 262784), (1120, 229936), (1280, 201194), (1568, 164240), (1792, 143710), (1960, 131392), (2053, 125440), (2240, 114968), (2560, 100597), (3136, 82120), (3584, 71855), (3920, 65696), (4106, 62720), (4480, 57484), (6272, 41060), (7840, 32848), (8212, 31360), (8960, 28742), (10265, 25088), (12544, 20530), (14371, 17920), (15680, 16424)]