20357824

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:405

約数の個数: 42

約数和(自身を含む): 41868852

約数和(自身を除く): 21511028

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 331, 496, 662, 961, 992, 1324, 1922, 1984, 2648, 3844, 5296, 7688, 10261, 10592, 15376, 20522, 21184, 30752, 41044, 61504, 82088, 164176, 318091, 328352, 636182, 656704, 1272364, 2544728, 5089456, 10178912, 20357824]

約数ペア:

[(1, 20357824), (2, 10178912), (4, 5089456), (8, 2544728), (16, 1272364), (31, 656704), (32, 636182), (62, 328352), (64, 318091), (124, 164176), (248, 82088), (331, 61504), (496, 41044), (662, 30752), (961, 21184), (992, 20522), (1324, 15376), (1922, 10592), (1984, 10261), (2648, 7688), (3844, 5296)]