20884756

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19032044

約数列:

[1, 2, 4, 29, 43, 53, 58, 79, 86, 106, 116, 158, 172, 212, 316, 1247, 1537, 2279, 2291, 2494, 3074, 3397, 4187, 4558, 4582, 4988, 6148, 6794, 8374, 9116, 9164, 13588, 16748, 66091, 98513, 121423, 132182, 180041, 197026, 242846, 264364, 360082, 394052, 485692, 720164, 5221189, 10442378, 20884756]

約数ペア:

[(1, 20884756), (2, 10442378), (4, 5221189), (29, 720164), (43, 485692), (53, 394052), (58, 360082), (79, 264364), (86, 242846), (106, 197026), (116, 180041), (158, 132182), (172, 121423), (212, 98513), (316, 66091), (1247, 16748), (1537, 13588), (2279, 9164), (2291, 9116), (2494, 8374), (3074, 6794), (3397, 6148), (4187, 4988), (4558, 4582)]