206780401

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 240744960

約数和(自身を除く): 33964559

約数列:

[1, 17, 19, 47, 53, 257, 323, 799, 893, 901, 1007, 2491, 4369, 4883, 12079, 13621, 15181, 17119, 42347, 47329, 83011, 205343, 229501, 231557, 258799, 640187, 804593, 3901517, 4399583, 10883179, 12163553, 206780401]

約数ペア:

[(1, 206780401), (17, 12163553), (19, 10883179), (47, 4399583), (53, 3901517), (257, 804593), (323, 640187), (799, 258799), (893, 231557), (901, 229501), (1007, 205343), (2491, 83011), (4369, 47329), (4883, 42347), (12079, 17119), (13621, 15181)]