28789364

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 55520640

約数和(自身を除く): 26731276

約数列:

[1, 2, 4, 17, 34, 67, 68, 71, 89, 134, 142, 178, 268, 284, 356, 1139, 1207, 1513, 2278, 2414, 3026, 4556, 4757, 4828, 5963, 6052, 6319, 9514, 11926, 12638, 19028, 23852, 25276, 80869, 101371, 107423, 161738, 202742, 214846, 323476, 405484, 423373, 429692, 846746, 1693492, 7197341, 14394682, 28789364]

約数ペア:

[(1, 28789364), (2, 14394682), (4, 7197341), (17, 1693492), (34, 846746), (67, 429692), (68, 423373), (71, 405484), (89, 323476), (134, 214846), (142, 202742), (178, 161738), (268, 107423), (284, 101371), (356, 80869), (1139, 25276), (1207, 23852), (1513, 19028), (2278, 12638), (2414, 11926), (3026, 9514), (4556, 6319), (4757, 6052), (4828, 5963)]