81991616

素因数分解:

$2^6\times 7^1\times {\mathrm{397}}^1\times {\mathrm{461}}^1$

素因数の和:877

約数の個数: 56

約数和(自身を含む): 186818016

約数和(自身を除く): 104826400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 397, 448, 461, 794, 922, 1588, 1844, 2779, 3176, 3227, 3688, 5558, 6352, 6454, 7376, 11116, 12704, 12908, 14752, 22232, 25408, 25816, 29504, 44464, 51632, 88928, 103264, 177856, 183017, 206528, 366034, 732068, 1281119, 1464136, 2562238, 2928272, 5124476, 5856544, 10248952, 11713088, 20497904, 40995808, 81991616]

約数ペア:

[(1, 81991616), (2, 40995808), (4, 20497904), (7, 11713088), (8, 10248952), (14, 5856544), (16, 5124476), (28, 2928272), (32, 2562238), (56, 1464136), (64, 1281119), (112, 732068), (224, 366034), (397, 206528), (448, 183017), (461, 177856), (794, 103264), (922, 88928), (1588, 51632), (1844, 44464), (2779, 29504), (3176, 25816), (3227, 25408), (3688, 22232), (5558, 14752), (6352, 12908), (6454, 12704), (7376, 11116)]