15585920

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 128

約数和(自身を含む): 44064000

約数和(自身を除く): 28478080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 71, 80, 98, 112, 128, 140, 142, 160, 196, 224, 245, 280, 284, 320, 343, 355, 392, 448, 490, 497, 560, 568, 640, 686, 710, 784, 896, 980, 994, 1120, 1136, 1372, 1420, 1568, 1715, 1960, 1988, 2240, 2272, 2485, 2744, 2840, 3136, 3430, 3479, 3920, 3976, 4480, 4544, 4970, 5488, 5680, 6272, 6860, 6958, 7840, 7952, 9088, 9940, 10976, 11360, 13720, 13916, 15680, 15904, 17395, 19880, 21952, 22720, 24353, 27440, 27832, 31360, 31808, 34790, 39760, 43904, 45440, 48706, 54880, 55664, 63616, 69580, 79520, 97412, 109760, 111328, 121765, 139160, 159040, 194824, 219520, 222656, 243530, 278320, 318080, 389648, 445312, 487060, 556640, 779296, 974120, 1113280, 1558592, 1948240, 2226560, 3117184, 3896480, 7792960, 15585920]

約数ペア:

[(1, 15585920), (2, 7792960), (4, 3896480), (5, 3117184), (7, 2226560), (8, 1948240), (10, 1558592), (14, 1113280), (16, 974120), (20, 779296), (28, 556640), (32, 487060), (35, 445312), (40, 389648), (49, 318080), (56, 278320), (64, 243530), (70, 222656), (71, 219520), (80, 194824), (98, 159040), (112, 139160), (128, 121765), (140, 111328), (142, 109760), (160, 97412), (196, 79520), (224, 69580), (245, 63616), (280, 55664), (284, 54880), (320, 48706), (343, 45440), (355, 43904), (392, 39760), (448, 34790), (490, 31808), (497, 31360), (560, 27832), (568, 27440), (640, 24353), (686, 22720), (710, 21952), (784, 19880), (896, 17395), (980, 15904), (994, 15680), (1120, 13916), (1136, 13720), (1372, 11360), (1420, 10976), (1568, 9940), (1715, 9088), (1960, 7952), (1988, 7840), (2240, 6958), (2272, 6860), (2485, 6272), (2744, 5680), (2840, 5488), (3136, 4970), (3430, 4544), (3479, 4480), (3920, 3976)]