19980346328

素因数分解:

$2^3\times {\mathrm{137}}^1\times {\mathrm{1777}}^1\times {\mathrm{10259}}^1$

素因数の和:12179

約数の個数: 32

約数和(自身を含む): 37761519600

約数和(自身を除く): 17781173272

約数列:

[1, 2, 4, 8, 137, 274, 548, 1096, 1777, 3554, 7108, 10259, 14216, 20518, 41036, 82072, 243449, 486898, 973796, 1405483, 1947592, 2810966, 5621932, 11243864, 18230243, 36460486, 72920972, 145841944, 2497543291, 4995086582, 9990173164, 19980346328]

約数ペア:

[(1, 19980346328), (2, 9990173164), (4, 4995086582), (8, 2497543291), (137, 145841944), (274, 72920972), (548, 36460486), (1096, 18230243), (1777, 11243864), (3554, 5621932), (7108, 2810966), (10259, 1947592), (14216, 1405483), (20518, 973796), (41036, 486898), (82072, 243449)]