208808575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^2$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 282507960

約数和(自身を除く): 73699385

約数列:

[1, 5, 19, 25, 37, 95, 109, 185, 475, 545, 703, 925, 2071, 2725, 3515, 4033, 10355, 11881, 17575, 20165, 51775, 59405, 76627, 100825, 225739, 297025, 383135, 439597, 1128695, 1915675, 2197985, 5643475, 8352343, 10989925, 41761715, 208808575]

約数ペア:

[(1, 208808575), (5, 41761715), (19, 10989925), (25, 8352343), (37, 5643475), (95, 2197985), (109, 1915675), (185, 1128695), (475, 439597), (545, 383135), (703, 297025), (925, 225739), (2071, 100825), (2725, 76627), (3515, 59405), (4033, 51775), (10355, 20165), (11881, 17575)]