212132545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 278581248

約数和(自身を除く): 66448703

約数列:

[1, 5, 17, 43, 85, 127, 215, 457, 635, 731, 2159, 2285, 3655, 5461, 7769, 10795, 19651, 27305, 38845, 58039, 92837, 98255, 290195, 334067, 464185, 986663, 1670335, 2495677, 4933315, 12478385, 42426509, 212132545]

約数ペア:

[(1, 212132545), (5, 42426509), (17, 12478385), (43, 4933315), (85, 2495677), (127, 1670335), (215, 986663), (457, 464185), (635, 334067), (731, 290195), (2159, 98255), (2285, 92837), (3655, 58039), (5461, 38845), (7769, 27305), (10795, 19651)]