31481968

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 80

約数和(自身を含む): 73281024

約数和(自身を除く): 41799056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 71, 74, 107, 112, 142, 148, 214, 259, 284, 296, 428, 497, 518, 568, 592, 749, 856, 994, 1036, 1136, 1498, 1712, 1988, 2072, 2627, 2996, 3959, 3976, 4144, 5254, 5992, 7597, 7918, 7952, 10508, 11984, 15194, 15836, 18389, 21016, 27713, 30388, 31672, 36778, 42032, 53179, 55426, 60776, 63344, 73556, 106358, 110852, 121552, 147112, 212716, 221704, 281089, 294224, 425432, 443408, 562178, 850864, 1124356, 1967623, 2248712, 3935246, 4497424, 7870492, 15740984, 31481968]

約数ペア:

[(1, 31481968), (2, 15740984), (4, 7870492), (7, 4497424), (8, 3935246), (14, 2248712), (16, 1967623), (28, 1124356), (37, 850864), (56, 562178), (71, 443408), (74, 425432), (107, 294224), (112, 281089), (142, 221704), (148, 212716), (214, 147112), (259, 121552), (284, 110852), (296, 106358), (428, 73556), (497, 63344), (518, 60776), (568, 55426), (592, 53179), (749, 42032), (856, 36778), (994, 31672), (1036, 30388), (1136, 27713), (1498, 21016), (1712, 18389), (1988, 15836), (2072, 15194), (2627, 11984), (2996, 10508), (3959, 7952), (3976, 7918), (4144, 7597), (5254, 5992)]