81987808

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11807}}^1$

素因数の和:11855

約数の個数: 48

約数和(自身を含む): 190439424

約数和(自身を除く): 108451616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3472, 6944, 11807, 23614, 47228, 82649, 94456, 165298, 188912, 330596, 366017, 377824, 661192, 732034, 1322384, 1464068, 2562119, 2644768, 2928136, 5124238, 5856272, 10248476, 11712544, 20496952, 40993904, 81987808]

約数ペア:

[(1, 81987808), (2, 40993904), (4, 20496952), (7, 11712544), (8, 10248476), (14, 5856272), (16, 5124238), (28, 2928136), (31, 2644768), (32, 2562119), (56, 1464068), (62, 1322384), (112, 732034), (124, 661192), (217, 377824), (224, 366017), (248, 330596), (434, 188912), (496, 165298), (868, 94456), (992, 82649), (1736, 47228), (3472, 23614), (6944, 11807)]