20506504

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 39571200

約数和(自身を除く): 19064696

約数列:

[1, 2, 4, 8, 71, 79, 142, 158, 284, 316, 457, 568, 632, 914, 1828, 3656, 5609, 11218, 22436, 32447, 36103, 44872, 64894, 72206, 129788, 144412, 259576, 288824, 2563313, 5126626, 10253252, 20506504]

約数ペア:

[(1, 20506504), (2, 10253252), (4, 5126626), (8, 2563313), (71, 288824), (79, 259576), (142, 144412), (158, 129788), (284, 72206), (316, 64894), (457, 44872), (568, 36103), (632, 32447), (914, 22436), (1828, 11218), (3656, 5609)]