1220515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:278

約数の個数: 16

約数和(自身を含む): 1578528

約数和(自身を除く): 358013

約数列:

[1, 5, 17, 83, 85, 173, 415, 865, 1411, 2941, 7055, 14359, 14705, 71795, 244103, 1220515]

約数ペア:

[(1, 1220515), (5, 244103), (17, 71795), (83, 14705), (85, 14359), (173, 7055), (415, 2941), (865, 1411)]