81360648

素因数分解:

$2^3\times 3^2\times {\mathrm{571}}^1\times {\mathrm{1979}}^1$

素因数の和:2562

約数の個数: 48

約数和(自身を含む): 220849200

約数和(自身を除く): 139488552

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 571, 1142, 1713, 1979, 2284, 3426, 3958, 4568, 5139, 5937, 6852, 7916, 10278, 11874, 13704, 15832, 17811, 20556, 23748, 35622, 41112, 47496, 71244, 142488, 1130009, 2260018, 3390027, 4520036, 6780054, 9040072, 10170081, 13560108, 20340162, 27120216, 40680324, 81360648]

約数ペア:

[(1, 81360648), (2, 40680324), (3, 27120216), (4, 20340162), (6, 13560108), (8, 10170081), (9, 9040072), (12, 6780054), (18, 4520036), (24, 3390027), (36, 2260018), (72, 1130009), (571, 142488), (1142, 71244), (1713, 47496), (1979, 41112), (2284, 35622), (3426, 23748), (3958, 20556), (4568, 17811), (5139, 15832), (5937, 13704), (6852, 11874), (7916, 10278)]