20761088

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 45372096

約数和(自身を除く): 24611008

約数列:

[1, 2, 4, 8, 16, 23, 32, 41, 43, 46, 64, 82, 86, 92, 128, 164, 172, 184, 256, 328, 344, 368, 512, 656, 688, 736, 943, 989, 1312, 1376, 1472, 1763, 1886, 1978, 2624, 2752, 2944, 3526, 3772, 3956, 5248, 5504, 5888, 7052, 7544, 7912, 10496, 11008, 11776, 14104, 15088, 15824, 20992, 22016, 28208, 30176, 31648, 40549, 56416, 60352, 63296, 81098, 112832, 120704, 126592, 162196, 225664, 241408, 253184, 324392, 451328, 482816, 506368, 648784, 902656, 1297568, 2595136, 5190272, 10380544, 20761088]

約数ペア:

[(1, 20761088), (2, 10380544), (4, 5190272), (8, 2595136), (16, 1297568), (23, 902656), (32, 648784), (41, 506368), (43, 482816), (46, 451328), (64, 324392), (82, 253184), (86, 241408), (92, 225664), (128, 162196), (164, 126592), (172, 120704), (184, 112832), (256, 81098), (328, 63296), (344, 60352), (368, 56416), (512, 40549), (656, 31648), (688, 30176), (736, 28208), (943, 22016), (989, 20992), (1312, 15824), (1376, 15088), (1472, 14104), (1763, 11776), (1886, 11008), (1978, 10496), (2624, 7912), (2752, 7544), (2944, 7052), (3526, 5888), (3772, 5504), (3956, 5248)]