81507778

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{67}}^1\times {\mathrm{457}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 136784448

約数和(自身を除く): 55276670

約数列:

[1, 2, 11, 22, 67, 121, 134, 242, 457, 737, 914, 1331, 1474, 2662, 5027, 8107, 10054, 16214, 30619, 55297, 61238, 89177, 110594, 178354, 336809, 608267, 673618, 1216534, 3704899, 7409798, 40753889, 81507778]

約数ペア:

[(1, 81507778), (2, 40753889), (11, 7409798), (22, 3704899), (67, 1216534), (121, 673618), (134, 608267), (242, 336809), (457, 178354), (737, 110594), (914, 89177), (1331, 61238), (1474, 55297), (2662, 30619), (5027, 16214), (8107, 10054)]