128952320

素因数分解:

$2^{11}\times 5^1\times 7^2\times {\mathrm{257}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 361326420

約数和(自身を除く): 232374100

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, 257, 280, 320, 392, 448, 490, 512, 514, 560, 640, 784, 896, 980, 1024, 1028, 1120, 1280, 1285, 1568, 1792, 1799, 1960, 2048, 2056, 2240, 2560, 2570, 3136, 3584, 3598, 3920, 4112, 4480, 5120, 5140, 6272, 7168, 7196, 7840, 8224, 8960, 8995, 10240, 10280, 12544, 12593, 14336, 14392, 15680, 16448, 17920, 17990, 20560, 25088, 25186, 28784, 31360, 32896, 35840, 35980, 41120, 50176, 50372, 57568, 62720, 62965, 65792, 71680, 71960, 82240, 100352, 100744, 115136, 125440, 125930, 131584, 143920, 164480, 201488, 230272, 250880, 251860, 263168, 287840, 328960, 402976, 460544, 501760, 503720, 526336, 575680, 657920, 805952, 921088, 1007440, 1151360, 1315840, 1611904, 1842176, 2014880, 2302720, 2631680, 3223808, 3684352, 4029760, 4605440, 6447616, 8059520, 9210880, 12895232, 16119040, 18421760, 25790464, 32238080, 64476160, 128952320]

約数ペア:

[(1, 128952320), (2, 64476160), (4, 32238080), (5, 25790464), (7, 18421760), (8, 16119040), (10, 12895232), (14, 9210880), (16, 8059520), (20, 6447616), (28, 4605440), (32, 4029760), (35, 3684352), (40, 3223808), (49, 2631680), (56, 2302720), (64, 2014880), (70, 1842176), (80, 1611904), (98, 1315840), (112, 1151360), (128, 1007440), (140, 921088), (160, 805952), (196, 657920), (224, 575680), (245, 526336), (256, 503720), (257, 501760), (280, 460544), (320, 402976), (392, 328960), (448, 287840), (490, 263168), (512, 251860), (514, 250880), (560, 230272), (640, 201488), (784, 164480), (896, 143920), (980, 131584), (1024, 125930), (1028, 125440), (1120, 115136), (1280, 100744), (1285, 100352), (1568, 82240), (1792, 71960), (1799, 71680), (1960, 65792), (2048, 62965), (2056, 62720), (2240, 57568), (2560, 50372), (2570, 50176), (3136, 41120), (3584, 35980), (3598, 35840), (3920, 32896), (4112, 31360), (4480, 28784), (5120, 25186), (5140, 25088), (6272, 20560), (7168, 17990), (7196, 17920), (7840, 16448), (8224, 15680), (8960, 14392), (8995, 14336), (10240, 12593), (10280, 12544)]