81327232

素因数分解:

$2^7\times 7^1\times {\mathrm{139}}^1\times {\mathrm{653}}^1$

素因数の和:813

約数の個数: 64

約数和(自身を含む): 186782400

約数和(自身を除く): 105455168

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 139, 224, 278, 448, 556, 653, 896, 973, 1112, 1306, 1946, 2224, 2612, 3892, 4448, 4571, 5224, 7784, 8896, 9142, 10448, 15568, 17792, 18284, 20896, 31136, 36568, 41792, 62272, 73136, 83584, 90767, 124544, 146272, 181534, 292544, 363068, 585088, 635369, 726136, 1270738, 1452272, 2541476, 2904544, 5082952, 5809088, 10165904, 11618176, 20331808, 40663616, 81327232]

約数ペア:

[(1, 81327232), (2, 40663616), (4, 20331808), (7, 11618176), (8, 10165904), (14, 5809088), (16, 5082952), (28, 2904544), (32, 2541476), (56, 1452272), (64, 1270738), (112, 726136), (128, 635369), (139, 585088), (224, 363068), (278, 292544), (448, 181534), (556, 146272), (653, 124544), (896, 90767), (973, 83584), (1112, 73136), (1306, 62272), (1946, 41792), (2224, 36568), (2612, 31136), (3892, 20896), (4448, 18284), (4571, 17792), (5224, 15568), (7784, 10448), (8896, 9142)]