31712805

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1338

約数の個数: 48

約数和(自身を含む): 59904000

約数和(自身を除く): 28191195

約数列:

[1, 3, 5, 9, 15, 19, 29, 45, 57, 87, 95, 145, 171, 261, 285, 435, 551, 855, 1279, 1305, 1653, 2755, 3837, 4959, 6395, 8265, 11511, 19185, 24301, 24795, 37091, 57555, 72903, 111273, 121505, 185455, 218709, 333819, 364515, 556365, 704729, 1093545, 1669095, 2114187, 3523645, 6342561, 10570935, 31712805]

約数ペア:

[(1, 31712805), (3, 10570935), (5, 6342561), (9, 3523645), (15, 2114187), (19, 1669095), (29, 1093545), (45, 704729), (57, 556365), (87, 364515), (95, 333819), (145, 218709), (171, 185455), (261, 121505), (285, 111273), (435, 72903), (551, 57555), (855, 37091), (1279, 24795), (1305, 24301), (1653, 19185), (2755, 11511), (3837, 8265), (4959, 6395)]