20980096

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{2687}}^1$

素因数の和:2762

約数の個数: 32

約数和(自身を含む): 42497280

約数和(自身を除く): 21517184

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 488, 976, 1952, 2687, 3904, 5374, 7808, 10748, 21496, 42992, 85984, 163907, 171968, 327814, 343936, 655628, 1311256, 2622512, 5245024, 10490048, 20980096]

約数ペア:

[(1, 20980096), (2, 10490048), (4, 5245024), (8, 2622512), (16, 1311256), (32, 655628), (61, 343936), (64, 327814), (122, 171968), (128, 163907), (244, 85984), (488, 42992), (976, 21496), (1952, 10748), (2687, 7808), (3904, 5374)]