291122720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:623

約数の個数: 144

約数和(自身を含む): 812887488

約数和(自身を除く): 521764768

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 160, 196, 224, 245, 280, 284, 355, 392, 490, 497, 523, 560, 568, 710, 784, 980, 994, 1046, 1120, 1136, 1420, 1568, 1960, 1988, 2092, 2272, 2485, 2615, 2840, 3479, 3661, 3920, 3976, 4184, 4970, 5230, 5680, 6958, 7322, 7840, 7952, 8368, 9940, 10460, 11360, 13916, 14644, 15904, 16736, 17395, 18305, 19880, 20920, 25627, 27832, 29288, 34790, 36610, 37133, 39760, 41840, 51254, 55664, 58576, 69580, 73220, 74266, 79520, 83680, 102508, 111328, 117152, 128135, 139160, 146440, 148532, 185665, 205016, 256270, 259931, 278320, 292880, 297064, 371330, 410032, 512540, 519862, 556640, 585760, 594128, 742660, 820064, 1025080, 1039724, 1188256, 1299655, 1485320, 1819517, 2050160, 2079448, 2599310, 2970640, 3639034, 4100320, 4158896, 5198620, 5941280, 7278068, 8317792, 9097585, 10397240, 14556136, 18195170, 20794480, 29112272, 36390340, 41588960, 58224544, 72780680, 145561360, 291122720]

約数ペア:

[(1, 291122720), (2, 145561360), (4, 72780680), (5, 58224544), (7, 41588960), (8, 36390340), (10, 29112272), (14, 20794480), (16, 18195170), (20, 14556136), (28, 10397240), (32, 9097585), (35, 8317792), (40, 7278068), (49, 5941280), (56, 5198620), (70, 4158896), (71, 4100320), (80, 3639034), (98, 2970640), (112, 2599310), (140, 2079448), (142, 2050160), (160, 1819517), (196, 1485320), (224, 1299655), (245, 1188256), (280, 1039724), (284, 1025080), (355, 820064), (392, 742660), (490, 594128), (497, 585760), (523, 556640), (560, 519862), (568, 512540), (710, 410032), (784, 371330), (980, 297064), (994, 292880), (1046, 278320), (1120, 259931), (1136, 256270), (1420, 205016), (1568, 185665), (1960, 148532), (1988, 146440), (2092, 139160), (2272, 128135), (2485, 117152), (2615, 111328), (2840, 102508), (3479, 83680), (3661, 79520), (3920, 74266), (3976, 73220), (4184, 69580), (4970, 58576), (5230, 55664), (5680, 51254), (6958, 41840), (7322, 39760), (7840, 37133), (7952, 36610), (8368, 34790), (9940, 29288), (10460, 27832), (11360, 25627), (13916, 20920), (14644, 19880), (15904, 18305), (16736, 17395)]