31450160

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 120

約数和(自身を含む): 87021216

約数和(自身を除く): 55571056

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 113, 140, 142, 196, 226, 245, 280, 284, 355, 392, 452, 490, 497, 560, 565, 568, 710, 784, 791, 904, 980, 994, 1130, 1136, 1420, 1582, 1808, 1960, 1988, 2260, 2485, 2840, 3164, 3479, 3920, 3955, 3976, 4520, 4970, 5537, 5680, 6328, 6958, 7910, 7952, 8023, 9040, 9940, 11074, 12656, 13916, 15820, 16046, 17395, 19880, 22148, 27685, 27832, 31640, 32092, 34790, 39760, 40115, 44296, 55370, 55664, 56161, 63280, 64184, 69580, 80230, 88592, 110740, 112322, 128368, 139160, 160460, 221480, 224644, 278320, 280805, 320920, 393127, 442960, 449288, 561610, 641840, 786254, 898576, 1123220, 1572508, 1965635, 2246440, 3145016, 3931270, 4492880, 6290032, 7862540, 15725080, 31450160]

約数ペア:

[(1, 31450160), (2, 15725080), (4, 7862540), (5, 6290032), (7, 4492880), (8, 3931270), (10, 3145016), (14, 2246440), (16, 1965635), (20, 1572508), (28, 1123220), (35, 898576), (40, 786254), (49, 641840), (56, 561610), (70, 449288), (71, 442960), (80, 393127), (98, 320920), (112, 280805), (113, 278320), (140, 224644), (142, 221480), (196, 160460), (226, 139160), (245, 128368), (280, 112322), (284, 110740), (355, 88592), (392, 80230), (452, 69580), (490, 64184), (497, 63280), (560, 56161), (565, 55664), (568, 55370), (710, 44296), (784, 40115), (791, 39760), (904, 34790), (980, 32092), (994, 31640), (1130, 27832), (1136, 27685), (1420, 22148), (1582, 19880), (1808, 17395), (1960, 16046), (1988, 15820), (2260, 13916), (2485, 12656), (2840, 11074), (3164, 9940), (3479, 9040), (3920, 8023), (3955, 7952), (3976, 7910), (4520, 6958), (4970, 6328), (5537, 5680)]