208156705

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 263554560

約数和(自身を除く): 55397855

約数列:

[1, 5, 53, 61, 79, 163, 265, 305, 395, 815, 3233, 4187, 4819, 8639, 9943, 12877, 16165, 20935, 24095, 43195, 49715, 64385, 255407, 526979, 682481, 785497, 1277035, 2634895, 3412405, 3927485, 41631341, 208156705]

約数ペア:

[(1, 208156705), (5, 41631341), (53, 3927485), (61, 3412405), (79, 2634895), (163, 1277035), (265, 785497), (305, 682481), (395, 526979), (815, 255407), (3233, 64385), (4187, 49715), (4819, 43195), (8639, 24095), (9943, 20935), (12877, 16165)]