209810312

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{72649}}^1$

素因数の和:72693

約数の個数: 24

約数和(自身を含む): 415194750

約数和(自身を除く): 205384438

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 361, 722, 1444, 2888, 72649, 145298, 290596, 581192, 1380331, 2760662, 5521324, 11042648, 26226289, 52452578, 104905156, 209810312]

約数ペア:

[(1, 209810312), (2, 104905156), (4, 52452578), (8, 26226289), (19, 11042648), (38, 5521324), (76, 2760662), (152, 1380331), (361, 581192), (722, 290596), (1444, 145298), (2888, 72649)]