81890816

素因数分解:

$2^9\times 7^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 80

約数和(自身を含む): 190163424

約数和(自身を除く): 108272608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 313, 448, 511, 512, 584, 626, 896, 1022, 1168, 1252, 1792, 2044, 2191, 2336, 2504, 3584, 4088, 4382, 4672, 5008, 8176, 8764, 9344, 10016, 16352, 17528, 18688, 20032, 22849, 32704, 35056, 37376, 40064, 45698, 65408, 70112, 80128, 91396, 130816, 140224, 159943, 160256, 182792, 261632, 280448, 319886, 365584, 560896, 639772, 731168, 1121792, 1279544, 1462336, 2559088, 2924672, 5118176, 5849344, 10236352, 11698688, 20472704, 40945408, 81890816]

約数ペア:

[(1, 81890816), (2, 40945408), (4, 20472704), (7, 11698688), (8, 10236352), (14, 5849344), (16, 5118176), (28, 2924672), (32, 2559088), (56, 1462336), (64, 1279544), (73, 1121792), (112, 731168), (128, 639772), (146, 560896), (224, 365584), (256, 319886), (292, 280448), (313, 261632), (448, 182792), (511, 160256), (512, 159943), (584, 140224), (626, 130816), (896, 91396), (1022, 80128), (1168, 70112), (1252, 65408), (1792, 45698), (2044, 40064), (2191, 37376), (2336, 35056), (2504, 32704), (3584, 22849), (4088, 20032), (4382, 18688), (4672, 17528), (5008, 16352), (8176, 10016), (8764, 9344)]